Product What makes the FITPROS Ultrasonic Weightless Smart Wristband special? Reduce Appetite - Suppress Appetite and Promote Weight Loss Better Blood Circulation - Stimulate muscles through high precision ultrasound in your hand, improve blood circulation and eliminate swelling. Overall Health Benefits - Improves metabolism to aid weight loss, stimulates sweat production, reduces fatigue, aids sleep and improves posture. Promotes Lymphatic Drainage- Fights blockages in the lymphatic system Reduces 80% of excess lymph fluid in 3 months Burns fat and sheds excess weight- It has a fat-burning effect to reduce fat, thereby reducing excess weight Appears for softer, smoother and firmer skin. Suitable for men and women Temperature Sensitive - Check Body Temperature Anytime Specifications Sonic Frequency: 3~60Hz Rated Power: USB Charging Charging Time: About 30 minutes Full Charge Usage: One Week Includes 1 x FITPROS Ultrasonic Weightless Smart Watch (cable included)