Anitech Speaker Wireless Bluetooth (V401RD1808)

Loudspeaker : ( 35mm 4? 3W ) x 2
Frequency : 50Hz-22kHz
Wireless Version : 4.1
Transfer distance : 10 M
Charging input : DC 5V 600-800mA
Battery : 3.7V / 1500mAh Lithium
Full charging time : Approx 1 Hour
Playing time : Approx 2-3 Hours
Dimension : 134 x 52 x 79.5 mm.
Weight : 340 g
Support : Micro SD Card , USB , Aux in 3.5mm
Built in microphone