Model Number: STY-Bluetooth speaker-04-#sty00162
Key Specifications/Special Features:
Specifications:Wireless: BluetoothUSBchargingvoltage: DC 5.0VOutputpower: 3.7V/500mAFrequencyresponse: 150Hz-20KHzNominalimpedance: 4ΩLoudspeaker: D52mm*H14mm with the bass diaphragm