● Speaker: 5Wx1
● Frequency response: 90Hz-20KHz
● Sensitivity: 80db ± 2db
● Speaker: Φ52mm/4Ω
● Signal to Noise Ratio: 80dB
● Distortion: 0.3%
● working voltage: 20-300mA
● Battery: Built-in battery 3.7V 800mA
● Bluetooth: Bluetooth version 4.0
● wireless hand free compatible with bluetooth device such as Mobile Phone, Laptop,PSP...
● Play music from Bluetooth device.
● Handfree microphone built-in
● Product sizes: 108x108x235mm