It is the best gift to family and friends!Specification:Material: ABS&PC? Size: 56mm*56mm*23mmWeight: 1.64oz(46.6g)Connection: Bluetooth(4.0 or above)Battery Voltage: 3.7vBattery Capacity: 180mAhCharge Voltage: DC 5V/1AOperation Temperature: 32ºF-95ºF(0ºC-35ºC) Duration: 4 hoursFull charge time: 2 hoursContraindicated as follows:1. People with pacemaker,defibrillator,or other implanted electronic devices.2. Severe cardiac arrhythmia,angina or heart failure.3. In pregnancy,children under 12 years old.4. Pets.This massager is the elicitation of muscle contraction by electrical impulses.It can promote local circulation, relax the muscle, or relieve fatigue.And positively contribute to the prevention and relief of neck pain and inflammation, numbness in the shoulders and arms, as well as headaches and tensions.It is a good chioce for those who working in the office for long time.Note:The gel pad is consumable,please rechange it if you have used it for 20 times.If you want to buy the repacement for gel pad,please find the number:B076M5DMN2. For more details, please refer to the manualCustomer Service:We always Stand by and Help Customer Fixing the problem of the product, please feel free to Contact with us Directly by Email.All emails will be replied within 24 hours.Most important of all,we offer 100% no risk money-back guarantee if you are not satisfied with your purchase wthin one month. Freely to contact to us if you have any question.
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