Product information:
Color: E-3541-Wireless Bluetooth version (rechargeable),E-1002D-wired (no Bluetooth),E-3511-wired Bluetooth, new E-3557-Wireless Bluetooth version (rechargeable)
Applicable object: Computer
Interface type: Bluetooth
Packing List: product plus packaging
Channel: 2.1
Input voltage: 220V
Battery capacity: empty
Operation mode: Button
Impedance: 70
Overall size: 31.5*5.5 * 6cm stereo

Packing list：

Speaker