Material: ABSType: Bluetooth Car KitApplicable phone models: with Bluetooth phonesMounting: visorOutput: BluetoothInput voltage: 5 (V)Working temperature: -40-50 (℃)Microphone sensitivity: 8 ohm / 1 wattSpeaker power: 1 (w)Talk time: 8 hoursDual power: solar energy and usb powerLong standby: 60 days