Car Bluetooth Earphone 2.4A Car Charger 2 in 1 Wireless Bluetooth Original Ldnio eatures --Car Charger with Build-in Bluetooth Earphone --Color: Black --Input: DC12-24V --Quick & short circuit / overtemperature / overvoltage / overcurrent protection --USB Ports: One USB Port --Output: 5V/2.4A --With A Bluetooth Earphone Details of Build-in Bluetooth Earphone -Bluetooth V4.0, HEP, HSP, A2DP -Earphone can be used for call and music -Stand-by time: 96 hours -Talking time: 4 hours -Bluetooth signal range: less than 10m -Auto switch on/off function for Bluetooth earphone Original Ldnio Car Bluetooth Earphone 2.4A Car Charger 2 in 1 Wireless Bluetooth Headphone with Mic For Driving Business Headset