Splashproof, Heavy Duty-Sound    Model: TRX550
Perfect sound quality and deep bass,whether you'are indoors or outside.Enjoy uncompromising sound anywhere! Splashproof,dustproof,anti-scratch,shockproof.

Technical Specifications:
Working Power:3.7V
Charger power:5V/600mh
S/N:≥90DB
Speaker:40mm  5W*2
Battery capacity:2200mah
Frequency:50hz-18khz
Degree of distortion:≤1%
Playback time:7-8hours
Size:180*60*60mm