Creazy&reg; Bluetooth Car Kit Mini Bluetooth V4.1 Audio Music Receiver Portable Hands-Free The Lantoo Bluetooth Receiver support Answering/Ending/Rejecting a call,Redialing the last called number,Play/Pausemusic,Next/Previous song,Volume up/down. The Mini Bluetooth Car Kit easily connects your smartphone to your car stereo(no need for professional installation) Built-in Microphone,hands-free answer calls and listen to music when your driving Bluetooth Version: V4.1+EDR Frequency Range: 2.4GHz Output Power Category: Class2 Bluetooth Mode: HFP/HSP/A2DP/AVRCP Bluetooth Range: up to 30 feet Electric Voltage: DC 3.7V - 5.0V Working Current: DC 5V/8-15mA Power Source: Power input(without built-in battery)