Specification:
Model: RB-M11

Bluetooth version: V4.2

Transmission range: 10m

Impedance: 4 ohms

Sensitivity: 82dB

Distortion: ＜3%

Frequency: 30Hz-20KHz

Speaker size: 2.75 inch 4Ω 5W

Output power: 3.5W

product requires battery,which are contained in the product ‪

Charging voltage: 5V/500mA

Product size: 190x59x92mm

Product weight: 457g

Standby time: About 30h

Play time: About 4h

Function: support AUX/ TF Card / call