Cordless & Portable: The hand finger massagers for muscles with a built-in lithium battery offering 120min(with heating)/90min(with out heating) working hours after full charging, convinently used either at home or in the office. The built-in 15-minute timer makes sure the optimal massage duration and maximum benefits for your hands. Designed for Both Hands - Hand massager tool is suitable for both left and right hands which would be an excellent gift for your men women wife or elderly parents of all ages on Valentine Day, Birthday, Mother's Day, and Christmas. This hand warmer massager comes with 12-month warranty for quality issues. Hand Massager with Heat and Compression: Possession 3 modes, 5 massage intensities, 3 heating levels and 15 min timers, allowing you to customize your massage experience. Combines with sequential compression massage and heat therapy analog kneading rollers and air pressure reduce fatigue of fingers/wrist and palms and warming of your cold hands. Personalized Design: Each finger has a separate position for a full range of massage. Anyone can benefit from the hand massager, especially those who need to prolonged or repetitive flexing of the wrist to work, such as using mouse, may suffer from rheumatoid thumb arthritis or carpal tunnel syndrome, Heat, air pressure, and kneading to help to get rid of finger numbness & joint soreness. Easyto Use & Charge: The Individual key operation (anti-touch) type C interface equipped with the massage gloves for hands machine can be used with the plug of the laptop or power bank to provide convenience for your charging. You will get better relaxation at anytime and anywhere. (NOTE: Do not use during charging.)