Overview :
1. 4 Level Vibration Mode-Enhance your Pre-workout and Recovery system with a Foam Roller.Low/Medium/High/Pulsating Vibration Modes at your choice. perfect for warming up, circulation improvement and recovery of sore and tight muscles.
2. Rechargeable&Ultra-Portable-With only 3.9inch diameter and 0.79lbs,light-weight and compact therapy ball is so portable that you can bring to anywhere you like for relaxation, the best companion for your camping trip, training, yoga or fitness.
3. Washable-All Surrounded by silicone, the waterproof grade is IP65, you can wash the massage ball directly but don't leave it in water for a long time.
4. Pain Reduction-Massage ball gives you access to hard to reach pain points and provides relief, Trigger Point Therapy and relaxation, It works to massage and relieve your back, hips, legs, arms, waist, and feet. 

Notes:
Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.

This product does not include a strap, you need to buy it yourself

Specification:
Mode: 4 files
Charging: USB charging
Battery: DC3.7V 2500mAh
Appearance: 100% waterproof
Charging time: about 4 hours
Motor operating temperature: 65 ° C
Colour: Black
Material: ABS+silicone

Package Content:
1 x Electric Massage Ball
1 x USB line
1 x Instruction manual