Feature: 1. [Low-Frequency EMS & TENS Pulse Technology] This smart neck massager uses double electric pulse tech, deeply massage the muscles, relax the cervical spine, relieve neck fatigue, and effectively improve various neck problems such as shoulder and neck strain, pain, soreness, stiffness, and discomfort. 2.[3 Gears Constant Temperature Hot Compress] Three-level constant temperature hot compress (42/47/52) can effectively promote blood circulation, unclog blood vessels, relieve neck pain, and relieve cervical spine pressure. 3.[5 Massage Modes&15 Levels Intensity] This pendant neck massager has an Integrated mode, tapping mode, kneading mode, vitality mode, and press mode. Plus 15 Levels of intensity, you can freely adjust according to your personal tolerance and preferences. 4. [Light Weight & Portable] 65g Only! Say goodbye to the bulky neck massager. Intelligent neck massager is small and light body, pendant-style innovative design, comfortable to wear, easy to carry, enjoy relaxing massage anytime, anywhere. 5. [270 Fitting Massage ] This cordless neck massager adopts an ergonomic curve electrode design to fit all body parts at 270, such as legs, arms, shoulders, and neck. 6. [High Capacity Battery Life&USB Charging] We use USB charge, then charge for 1.5 hours, 1200mAh Capacity Battery can be used for 10-15 days (15 minutes per day). How to use First, place the pendant neck massager on the neck and stick it on the skin. Short press the power button to power on the default. Then adjust to your preferred mode and intensity. Do not use the 15th gear directly when the machine is turned on. Specifications: 1. Color: Black, White 2. Weight: 0.12kg/26.5Ib 3. Packing size: 15*3.2*19.4cm 4. Rated voltage (V): 5v/1A 5. Rated power (W): 5W 6. Battery capacity: 1200Ah Package Included: 1* Neck Massager 1* USB Charging Cable 1* English User Manual Notes:1. Due to the different display and lighting effects, the product's actual color may be slightly different from the color shown in the picture.2. Due to manual measurement, please allow a measurement deviation of 1-3cm.