Bluetooth protocol: V5.0
Frequency range: 20HZ-20KHZ
Charging voltage: 5V
Sensitivity: 88DM
SN-to-noise ratio: 90db

Horn impedance: 32 ohms + 15%
Horn specifications: 25mm
Operation range: 10m
Charging time: 2H
Service duration: 10H (50% volume)
Battery capacity: 300mAh lithium battery
Bluetooth name: BT-music
Colour:A: black
Material:Polyester cotton+plastic

Package Contents:
1 x Speaker
1 x Charging cable

Only the above package content, other products are not included.
Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.