Features:Talking in hands-freeWith1.5 Inch LCD displaySupport the remote control to meet dials or pick up telephoneAutomatically cut over to telephone conversation condition when phone comingBroadcast music stored up by the automobile through car stereo systemStereo blue-tooth and FM transmitter technologyAutomatic last memoryCar cigarette lighter power supply21 keys remote controller and steering remote controllerSupport SD/MMC/TF card， USB deviceSupport MP3 / WMA music formatSteering wheel remote controller powered by 1 x CR2025 battery (not included)Remote controller powered by 1 x CR2025 battery (not included)Rated Voltage: 12-24VRated Current: 90mALimited Voltage: 9~26VPower Consumption: 1WWork Temperature: 0-50 degreeSNR>60 dBDegree of Distortion<0.1%Bluetooth Version: BlueCore3Bluetooth Voice: With AD2P (Advance audio distribution profile)Transmit Distance: 10MBluetooth Microphone Effective Range: 0.5~2MTransmit Frequency: 87.5-108MHzFrequency Response: 20Hz-15KHzPackage including:1 x Car Bluetooth FM Transmitter1 x Remote Controller1 x Steering Wheel Remote Controller