(Designed for device makers and DIY lovers, delivering top-tier performance and customization to everyday users.) Large Screen=0.91''OLED=SX600HL Small Screen=0.69''OLED=SX600HS Highlights • Accurate constant power output (±0.5%), adjustable 1W–60W• Supports Power, Voltage, and Temperature Control modes• Ultra-precise resistance detection down to 0.0001Ω• Single lithium battery input, supports external charging board (5V/1.5–1.8A)• Multiple protections: reverse polarity, short circuit, low resistance, overheat, low voltage• Firmware upgrade support for personalized features• Designed for global high-end players and DIY modders, combining power with customization Power & Charging • Power supply: Single lithium battery (max 4.2V)• External charging: Supports 5V/1.5–1.8A module Working Parameters • Standard resistance: 0.10–3.0Ω (Power mode); 0.05–3.0Ω (Temp mode)• Static current: <1µA• Vaping current: Max 20A at 0.15Ω• Output: 1–60W, max 8V Features • Display: battery voltage, output voltage, resistance, power• Protection: reverse, low voltage, overheat, short circuit, low resistance• Screen: 0.69-inch OLED, 96×16 resolution• Temp range: 100–300℃ (212–572℉)• Flavor curves: customizable Power & Temp curves (20 steps)• Firmware upgrade via PC via SXi-tools• 180° screen flip (remove atomizer, hold fire button until “check atomizer,” then press + button) Operation • Power ON/OFF: Press fire button 5 times quickly to turn on/off• Menu & Modes: Press fire button 5 times → use +/– buttons to navigate → confirm with fire button Modes: WATTS, V.VOL, TEMP TEMP mode: choose coil type (SS316L / NI200 / TCR), support resistance setting & TCR customization (0.00050–0.00700)• Power mode: adjust directly with +/– buttons (1–60W)• Temp mode: press + button to adjust wattage, – button to adjust temperature (100–300℃)• Voltage mode: adjust 1.0–8.0V with +/– buttons (limited by…

The SXmini Puremax 1 is a compact and easy‑to‑use vape device, designed for pure flavor and convenience. Even first‑time users can get started quickly. How to Start Ready to use: pre‑installed coil and battery，fill the eliquid and wait for 5 minutes. Auto‑draw activation: just inhale, no buttons needed. 0.6Ω coil: delivers smooth vapor with balanced flavor and clouds. Tips for Use Charging: use the Type‑C port. Do not vape while charging. Keep clean: avoid e‑liquid entering the charging port. Best experience: inhale gently, not too hard. Who It’s For Users who want a portable device Those who enjoy smooth flavor with easy operation Perfect for on‑the‑go vaping Quick Summary Ready to use, no setup needed Auto‑draw, just inhale to vape Type‑C charging, eco‑friendly disposal Compact and portable for anytime use

The SXmini MQ Class is a single 18650 box mod. Small size, strong performance, easy to use. 01｜Battery & First Setup Open the battery door. Insert 18650 battery (negative out). Close the battery door. First use: press fire button 5 times to turn on, attach atomizer, adjust power, start vaping. 02｜Basic Operations Power On/Off: press fire button 5 times. Lock/Unlock Device: press fire button 3 times. Adjust Power: use Up/Down buttons. Lock Buttons: hold Up + Down for 3 seconds. 03｜Vaping Modes Press fire button 5 times to enter main menu: Wattage/Voltage Mode: 1-60W, display puff count, voltage, resistance, battery. Temperature Control (Temp Mode): supports SS316, Ni200, TCR wires, auto-resistance lock at room temp. VT Coil Mode (for SXmini VT Coils): choose LOCK NEW for new coil, USE OLD for used coil. Adjust power as needed. Smart Curves: customize power/temperature curves or use preset Soft/Neutral/Hard. Hold fire button to exit. 04｜Advanced Features Screen Flip: remove atomizer, hold fire button until “Check Atomizer” appears, then hold Up button until screen resets. Puff Counter Reset: connect USB-C cable. 05｜Safety Protections Device alerts for: no atomizer, low battery, coil Ω too low, overheat, short circuit.Solution: reinstall atomizer, recharge, replace coil, or let device cool. 06｜Maintenance Tips Lock resistance only at room temperature. VT coils: select LOCK NEW first time. Check and clean condensation regularly. 07｜Specifications Chipset: YiHi SX416J Battery: 18650 (not included) Output: 1-60W / 1-8V Size: 76×24×36.75mm Materials: Stainless steel + aluminum Quick Summary SXmini MQ Class is small, powerful, and safe. Easy for beginners, flexible for advanced users. Multiple modes, smart…

The iPV V200, powered by the YiHi SX531 chipset, runs on dual 18650 batteries with a wattage range of 5–200W. It’s powerful, yet simple to operate. Power On & Basics Insert batteries: open magnetic door, place two 18650 cells correctly. Power on: press fire button 5 times quickly. Lock/Unlock: press fire button 3 times. Wattage Adjustment On home screen, press Up button. Use Up/Down to set wattage (5–200W). Confirm with fire button. Flavor Modes On home screen, press Down button. Choose from: Normal: constant 100% power Strong: starts ~150%, decreases to 100% Soft: starts ~50%, increases to 100% SXi-EQ 1–3: DIY curves, adjust power % every 0.5s (50–150%). Puff Counter Track your puff count on screen. Hold Up + Fire button to reset. Main Menu Hold Up + Down buttons together: System Off: shut down Brightness: adjust screen brightness Exit: back to home Common Notices No Atomizer: check or replace coil. Low Battery: recharge (voltage <3.2V). Low Resistance: coil <0.1Ω → replace. Short: output short detected. Max Power: reduce wattage. Specs Wattage: 5–200W Battery: Dual 18650 Size: 48 × 92.7 × 33.6 mm Max charging: 5V / 2A Chipset: YiHi SX531 Quick Summary Fire button for main actions, Up/Down for details Easy wattage adjustment Flavor modes: Normal / Soft / Strong / SXi-EQ custom curves Puff counter reset anytime Dual‑battery design for stable performance

The SXmini SL Class V2, powered by the YiHi SX730J chipset, is a single‑battery device supporting 18650/20700/21700 batteries. Packed with features, but very easy to use once you know the basics. Power On & Unlock Insert battery (check polarity). 5 clicks fire button → power on. 3 clicks fire button → lock/unlock. Power & Temp Control Power Mode: roll joystick up/down to adjust wattage. Temp Control Mode: adjust preset temperature with joystick. Two TC styles: Constant (precise) and Dynamic (slightly fluctuating). Supports SS, Ni, Ti, and custom TCR. Always lock resistance at room temperature before use. Flavor Modes & Curves Enter flavor curve page: press joystick down. Presets: Soft, Neutral, Strong. SXi‑EQ 1~3: DIY flavor curves, adjust wattage/temperature % every 0.5s. Percentage‑based system works with all coil types. Main Menu Access with 5 fire button clicks or hold joystick right 3s System Off: shutdown Mode: select Power/Temp Control P.Counter: puff counter (daily/total) Tweaks: brightness, timeout, reset Stats: device data Temp Units: °C/°F Timeout: screen timeout Temp Presets 5 quick presets: Cold / Cool / Normal / Warm / Hot. Adjust temp and voltage easily for different atomizers. Common Hints No atomizer → check coil/connection. Low battery → recharge. Short/Overheat → stop, check, or let it cool down. Dry‑hit protection → make sure cotton is wet and resistance locked at room temp. Specs Power: 5–100W Battery: 18650 / 20700 / 21700 (not included) Size: 89.1 × 42.3 × 30.2 mm Chipset: YiHi SX730J Max charging: 5V/1A Quick Summary Power / Temp Control / Curve modes all included Always lock resistance to…

The SXmini G Class V2, powered by the YiHi SX750J chipset, is a dual-18650 high-end device. It looks complicated at first glance, but operation is actually very straightforward. Here’s a simple guide to get you started. 1. Power On & Unlock Insert two 18650 batteries(mind the polarity). Press fire button 5 times→ power on. Press fire button 3 times→ lock / unlock device. 2. Main Screen & Shortcuts The joystick is your main control. Press joystick 3 times→ unlock shortcut mode. In shortcut mode: Up / Down: adjust power Hold Right: change font color Hold Left: change wallpaper (if supported) Press fire button to exit shortcut mode. 3. Personalization Clock: move joystick left to switch styles, change color and background. Themes: 3 built-in themes, plus more via Wi-Fi. Memory Profiles (M1–M5): save different atomizer setups for quick switching. 4. Power Curves & DIY Curves Presets: choose from 7 curves (Hard, Soft, Neutral, and CWM 3s–10s). DIY (SXi-EQ): edit output every 0.5s to fully customize your vape curve. 5. Temperature Control Enter Modeto select SS316L, SS430, Ni200, Titanium, or custom TCR. Always lock resistance when coil is at room temperature. 5 quick presets: Cold, Cool, Normal, Warm, Hot – each can be fine-tuned. 6. Main Menu Highlights Enter with 5 fire button clicks. Puff Counter: lifetime, daily auto reset, or manual reset. Tweaks: brightness, timeout, auto-lock, night mode, battery display, etc. Smart Boost: custom preheat for cold coils. Date & Time: quick setup. Languages: download via Wi-Fi. Stats: detailed performance info. 7. Wi-Fi & SX-PANEL Enable WiFi → connect phone to…

The Puremax Q looks simple and pocket-size, but it hides strong power. Inside is the YiHi SX255J chip and a 1500mAh battery. Let’s see how to use it in daily life. 01｜First Fill: Use the Airplane Mode Puremax Q has a special trick — the rotating mouthpiece, also called airplane mode. • Travel or storage: turn it counter-clockwise to close juice flow (airplane mode on). No leaking. • Ready to vape: turn it clockwise to open (airplane mode off). First time filling: slide open the fill door, fill the tank full, close the door, and wait 3–5 minutes. The cotton needs to be wet before vaping. 02｜Two Ways to Vape Everyone has a different habit. Puremax Q gives you two choices: • Auto Draw: just inhale, no button needed. • Dual Mode: inhale or press the button, both work. Press the fire button 3 times quickly to change the mode. 03｜Smart Vibration Alerts Puremax Q talks to you with small vibrations: • Low e-liquid: short vibration, time to refill. • Empty tank: long vibration, device stops to protect the coil. • New pod too dry: short vibration when cotton is not ready. No more dry hits. 04｜Which Mouthpiece Fits You? In the box you get two drip tips: • Wide driptip → for bigger clouds, RDL/DL style. • Narrow driptip → for MTL, stronger throat hit, good with higher resistance. It also supports most 510 drip tips. If you use your own, remember to control the juice flow with airplane mode. 05｜Daily Care Tips • Clean the condensation with a cotton swab. • Not using for long? Turn on airplane mode. • Charge with Type-C, 5V/1A. Don’t use fast chargers. 06｜Why People Like Puremax Q • Airplane mode: leak-proof design for travel and storage. • Flexible use: auto or button, your choice. • Smart protection: always takes care of the coil. • Custom style: change drip tips if you like. Final Words Puremax Q is more than just a small pod. It’s easy, smart, and safe. Great for new users, but also fun for advanced vapers. Put it in your pocket, and enjoy a smooth vape anytime.

The Puremax 2 is small and light, but full of smart features. Let’s see how to use it and get the best vaping experience. 01｜Filling & Leak Protection Puremax 2 has a rotating mouthpiece (Airplane Mode): •Travel or storage: turn the mouthpiece counter-clockwise to close the cotton juice hole (Airplane Mode ON). No leaking. •First fill: fill the tank fully. Cotton expands and forms a seal. •New pod: wait 2-3 minutes after filling so cotton is fully wet. Smart alerts: •Low liquid: short vibration reminds you to refill. •Empty pod: vibration + screen alert, device auto-shuts off to prevent dry burn. 02｜Core Technology & Safety PURE Temperature Control: •Stops dry burn and overheating automatically. •Precise temperature curve improves flavor. •Protects battery and pod life. PURE Mode Dry Burn Protection: •New pods not fully wet? Device gives short vibration alert. 03｜Basic Operation & Custom Settings Basic Operation •Quick lock: press fire button 3 times. •Adjust power: press 4 times to enter, then press to select 5-35W. •Main menu: press 5 times to enter settings. Customization •Trigger mode: Auto / Button / Dual mode. •Wallpapers: upload 4 custom wallpapers via SX Link USB + SXi Tools. 04｜Daily Care Tips • Clean condensation with a cotton swab regularly. • Not using for long? turn Airplane Mode ON to prevent leaks. 05｜Specs & Accessories •Chipset: YiHi SX304J •Battery: 1300mAh (5V/2A fast charge) •Size: 104 × 27.47 × 19.78mm Quick Summary Puremax 2 is small, smart, and safe. With Airplane Mode, PURE temperature control, and custom wallpapers, it is easy to use and fun to personalize. Perfect for new users or experienced vapers.

Flavor is every vaper’s first sensory memory — and the key measure of any device’s quality. Since our founding, YiHi has stayed true to its philosophy: “Customer first, innovation for the customer.” For us, flavor is the soul of chip development. The Birth of SXi-Q — Effortless Multi-Profile Switching In October 2015, alongside the launch of the SXmini ML Class, YiHi introduced its self-developed SXi-Q system. For the first time, users could create five fully customizable profiles (C1–C5). Whether switching between different atomizers or adapting to various e-liquids, users could fine-tune settings on a PC and upload them to the device — delivering a “one device, many flavors” experience. Intelligent Taste Curve — Drawing the Path of Flavor In May 2016, with the debut of the SXmini Q Class, SXi-Q entered a new era with Intelligent Taste Curve (SXi-EQ) technology. Select SXi-EQ modein the software and choose from five flavor curves (S1–S5). Each curve features 20 adjustable power pointsacross a 10-second heating cycle, allowing precise control in 5-second intervals. From a gentle preheat to an explosive instant ramp-up, users can design their own flavor curveand save it directly to the device. The system also offers pre-set classic modes: Soft: Gradual 75% → 100% power for a smooth, delicate vape. Hard / Strong: 125% → 100% ramp-down for instant vapor and flavor burst. Neutral: Balanced and consistent for all-day vaping. Flavor Beyond Just “Good” or “Bad” With SXi-EQ, flavor is no longer a subjective “good” or “bad” — it becomes measurable, designable, and repeatable. Like mixology or baking, it invites vapers to be part of the…

In the vape industry, performance isn’t just about stacking hardware specs — it’s about smart, flexible software innovation. As a pioneer of China’s original vape chip technology, YiHi started a new era of firmware upgrade and customization in 2014, driving the industry into a new age of high-performance cloud chasing. GUI Software SXi-Q — The Ultimate Upgrade & Control Tool YiHi’s self-developed graphical interface software, SXi-Q, bridges the gap between users and the chip. With SXi-Q, both brands and end-users can easily upgrade firmware and fine-tune multi-dimensional parameters, keeping devices at peak performance while delivering a truly personalized vaping experience. From 30W to 60W — A Milestone in Power Evolution In 2014, YiHi introduced the SX350 30W — marking the rise of China’s original vape chip. Thanks to SXi-Q’s upgrade capability, the SX350 evolved step-by-step: 35W power boost 40W & 50W performance expansion Reaching 60W maximum output This upgrade journey not only extended the product’s life cycle but also delivered more stable and powerful output, fueling the growth of the cloud-chasing market. Intelligent Flavor Curves — Your Personal Flavor Master Upgrades aren’t just about higher wattage. YiHi made flavor optimization a core mission. Through intelligent flavor curve control, our chips precisely manage heating power and temperature changes, releasing the full potential of your e-liquid. The result? A smooth, layered, and rich vaping experience. Why Upgradeable & Customizable Matters Always Evolving, Never Outdated Firmware upgrades keep your device ahead of the curve — no forced hardware obsolescence. Tailored to Every Vaper From beginners to enthusiasts, adjustable flavor and power settings let everyone find their perfect vape. Boost Brand Competitiveness Brands can respond…