Function:
1, electrical pulses provider a soothing massage
2, relieves stress
3, relaxes tense neck and shoulder muscles
4, samll compact and light weight
5, various massage program
6, 10 intensity levels

Technical Parameters:
Voltage:4.5V
Power: 3W
Retail box size: 26*7*21cm
Carton size:49*28*38.5cm
Qty/ctn: 20pcs/ctn
N.W: 12kg
G.W: 15kg

Main parts:
1, one pcs neck ring

2, two pcs physical therapy electrodes 

3, three pcs batteries