PT-X28

Function: Bluetooth，
phone call，TF card，AUX
material ABS with UV   

chipset;  RDA 2.1+EDR;
support 3.0 version 2.4G   

distance 10meter   

Speaker: Ø40mm，
4Ω/3W 13 double inner magnetic core, 4
Ω/3W vibration gun-side-film   

Amplifier 3W   

Battery  450MA polymer battery   

working time: 2-4H