Intelligent FOAM ROLLER

USB Electric Massager for Yoga, Muscle Pain, Relaxation, Stove Tube Vibration, Acupressure, Massage Column, Foam Roller
Specs
USB version
Charging time: 1.5 hours
Color: space gray/orange gouache
Operating time: 15 minutes
USB charger
Input: 100-240 V - ~ 1 A
Output: 3.7V DC - 1A
Vibration frequency: 1 Hz
2 20 Hz
3 Hz band
4 35 Hz