Product Description Support Handsfree， build-in Micophone， covenient for answer the incoming callCVC Noise Reduction， Full duplex technologySupport Phone A2DP， TF/MP3 Music PlayComes with the Magnetic sticker for stable the device.Smooth switching between incoming call and music mode Specifications:FM transmit frequency: 87.5 - 108.0MhzBluetooth transmission distance: 10MBluetooth with A2DP sound processing functionsBluetooth version: V3.0 + EDRFrequency Response: 20Hz ~ 15KhzSNR:> 60dBWorking temperature: -20--50 degreePower consumption: 1WLimit working voltage: 9 ~ 26VRated operating voltage: 12VPackage Includes:1 x Bluetooth FM transmitter1 x 3.5 mm audio line1 x Dual USB Car Charger1 x Magnetic sticker