This professional-quality portable personal massager penetrates targeted muscle groups through electronic muscle stimulation. The personal massager features 6 treatment modes for sports massage, physical therapy support, muscle toning, improved circulation and deep tissue massage.HighlightsProfessional-quality portable dual channel low frequency massager Six treatment modes for chronic muscle pain, arthritis, sciatica, sports injuries, physical therapy support and muscle toning etc. Penetrates targeted muscle groups e.g. back, shoulders, waist, hands, foots, legs and other parts of the body through electronic muscle stimulation Two outputs to do the massage on more treatment points at the same time or multiple users. 10 respective intensity levels offering versatile choice for long time users Wide range of settings with simple, intuitive controls The large, clear LCD makes it easier for visually impaired to set and operate Automatically switches the unit off after the set time when activated (20 minutes)ARTG 235768Features - Power source: battery and USB power Channels: 4 Pulse rate: 100 Hz Output power: 0~60m - A Large LCD Backlight display Battery: up to 6-hour use on a single charge Power supply: built-in rechargeable Lithium battery Wall charger included - Package Includes - Dual-channel TENS unit Two oval shaped electrodes pads Two palm shaped electrodes pads Two lead wires Charger (USB port, 100-240V 50/60Hz automatically adjusted) Instruction Manual Plastic holder USB extension cord Meridians figure Gift box