Smart Dual-Channel TENS EMS Machine | FDA-Cleared, 24 Modes, 20 Levels

Smart Multifunctional Dual Channel Massager

Product Overview

The SM9910 is a portable dual-channel TENS massager designed for pain relief, body relaxation and fatigue recovery. It features 24 massage modes, 20 intensity levels, independent A/B channel control, a blue backlight LCD display and a rechargeable 180mAh battery, making it suitable for use on the neck, shoulders, back, waist, arms, legs and joints. OEM/ODM customization is available for B2B projects.

Attribute	Specification
Product Name	Portable Dual-Channel TENS Massager
Model No.	SM9910
Application	Neck, shoulders, back, waist, arms, legs and joints
Main Function	Pain relief, body relaxation, fatigue recovery
Channels	A/B Dual Channels
Channel Control	Independent mode and intensity control for each channel
Modes	24 Massage Modes
Intensity Levels	20 Intensity Levels
Timer	10–60 Minutes Adjustable Timer
Default Working Time	20 Minutes
Control Method	Button Control
Display	Blue Backlight LCD Display
Output Ports	2 Safety Output Ports
Power Supply	Rechargeable Lithium Battery
Battery Capacity	3.7V / 180mAh
Charging Port	Micro USB
Charging Time	About 2.5 Hours
Pulse Frequency	1–110Hz ±10%
Low Battery Protection	Auto shutdown when battery is below 3.2V
Customization	OEM/ODM customization available

In today’s fast-paced world, chronic muscle fatigue, persistent neck soreness, and post-workout muscle tightness have become common ailments for office workers, fitness enthusiasts, and elderly individuals alike. The next-generation Dual Channel Massager is engineered as your ultimate personal physical therapist, offering a professional-grade recovery experience right in the comfort of your home or office. Utilizing advanced TENS (Transcutaneous Electrical Nerve Stimulation) and EMS (Electrical Muscle Stimulation) pulse technologies, this state-of-the-art Dual Channel Massager provides targeted pain relief, accelerates muscle recovery, and restores your body’s vitality efficiently and safely.

Unlike conventional, single-output massage devices that limit your treatment options, our premium Dual Channel Massager features a truly independent A/B dual-channel control system. This revolutionary design allows you to treat two different body areas simultaneously or share the device with a partner, with each channel operating on completely customized settings. Boasting a sleek, compact aesthetic, a modern Type-C fast-charging interface, and an intuitive, crystal-clear backlit LCD screen, this Dual Channel Massager seamlessly integrates into your daily wellness routine. Whether you are managing chronic lower back pain at your desk, recovering from an intense gym session, or unwinding after a long day of travel, this portable Dual Channel Massager guarantees that professional relief is always just a single click away.

Key Advantages & Features

1. True Independent Dual-Channel Isolation for Customized Relief

Standard electronic stimulators on the market often force all connected pads to share the exact same pulse mode and intensity level. Our advanced Dual Channel Massager eliminates this limitation entirely with its fully isolated A/B dual-output system. The operational modes and intensity settings of Channel A and Channel B are completely decoupled. This means you can apply gentle, soothing tapping mode to your sensitive neck muscles via Channel A, while simultaneously running a deep, high-intensity kneading session on your fatigued lower back via Channel B. This independent functionality makes the Dual Channel Massager an incredibly versatile 2-in-1 device, allowing you or a loved one to enjoy a perfectly tailored therapy session at the exact same time.

2. 24 Pre-programmed Professional Modes to Target Every Pain Point

To cater to diverse body conditions and therapeutic needs, this comprehensive Dual Channel Massager comes pre-loaded with 24 expertly calibrated massage modes. These modes seamlessly simulate traditional holistic therapies and modern sports rehabilitation techniques, including acupuncture, cupping, scraping, deep tissue kneading, Swedish massage, and sports-recovery tapping. Whether you require gentle daily relaxation to promote local blood circulation or localized, intense electrotherapy to alleviate obstinate muscle knots, this Dual Channel Massager delivers precise electrical waveforms that penetrate deep into muscle tissues, blocking pain signals and triggering the release of natural endorphins.

3. 20 Levels of Precision Intensity for Granular Power Adjustments

Everyone has a unique pain tolerance, and different body parts require varying levels of stimulation. That is why our Dual Channel Massager offers an ultra-fine 20-level intensity adjustment grid for every single mode. Levels 1 through 5 provide a mild, comforting micro-current that is perfect for sensitive areas or first-time users adapting to TENS therapy. Levels 6 through 15 offer moderate stimulation for standard muscle soreness, while levels 16 through 20 deliver a powerful, deep-tissue impulse designed to clear lactic acid buildup after rigorous workouts. This Dual Channel Massager ensures smooth, gradual transitions between intensity levels, removing any uncomfortable, sudden shocking sensations.

4. High-Definition Backlit LCD Screen with Intelligent Auto-Dimming

Equipped with a premium, high-contrast white backlit LCD screen, this Dual Channel Massager delivers exceptional visual clarity. The modern, scientifically mapped user interface displays all essential data at a single glance, including the current massage mode, independent intensity grids for both channels, a precise countdown timer, and a real-time battery life indicator. To maximize energy efficiency and protect your eyes during nighttime use, the Dual Channel Massager incorporates an intelligent power-saving feature: the screen backlight automatically turns off after 10 seconds of button inactivity, allowing you to focus entirely on your relaxation without distracting glare.

5. High-Capacity Battery & Ultra-Low Standby Consumption for True Portability

Say goodbye to the constant anxiety of running out of power. This high-performing Dual Channel Massager is powered by an upgraded 3.7V / 180mAh rechargeable lithium battery and features a universally compatible Type-C fast-charging port. Thanks to its cutting-edge power management IC and an ultra-low static standby current of less than 30uA, the device preserves its battery charge exceptionally well even when stored inside a drawer for months. A full charge takes only 2.5 hours, providing days of continuous on-the-go relief, making this Dual Channel Massager the perfect travel companion for business trips, vacations, and daily commutes.

6. Intelligent Safety Timer and One-Key Lock Function for Worry-Free Use

Safety is our top priority when designing health and wellness electronics. This reliable Dual Channel Massager features an automatic 20-minute operational safety timer, which can be easily adjusted between 10 and 60 minutes based on your preference, preventing muscle fatigue caused by over-massage. Furthermore, the Dual Channel Massager is equipped with a reassuring hardware lock feature. By long-pressing the channel button, you can instantly lock the interface, preventing accidental intensity increases or mode changes while the device is resting in your pocket, bag, or belt clip.

Technical Specifications

Technical Items Official Specification Standards

Product Name Smart Multifunctional Dual Channel Massager

Massage Modes 24 Pre-programmed Intelligent Modes

Intensity Levels 20 Levels (Independent Control for Channel A and B)

Channel Count 2 Isolated Outputs (Standard Safety Jacks)

Power Supply 3.7V / 180mAh Rechargeable Lithium Battery

Charging Interface Modern Type-C Port

Charging Current Max 0.18A

Charging Duration Approx. 2.5 Hours (Auto-shutdown protection during charging)

Static Current ＜ 30uA (Ultra-low standby power consumption)

Output Waveform Stable Symmetrical Biphase Rectangular Wave