​Feature:100% brand new and high quality.Excellent sound quality with D.S.P solution for echo cancellationNoise suppression (CVC)Support USB disc and SD cardApply to USB devices and MP3 playerSupport MP3/WMA music formatTransmitter powered by 12V car socket and remote powered by 1 x CR2025 battery (1x CR2025 battery NOT included)Give a variety of smart phone chargingTransmit the audio wireless to the radioSwivel axis design, easy to useSpecifications:Color:Black,SilveryMaterial:PlasticFrequency Response:20Hz-15KhzTransmission Frequency: 87.5-108MHzSupported Format:MP3, WMARated Operating Voltage:12 VUltimate Operating Voltage:9-26 VSNR Ratio > 60dBLeft/ Right Channel Separation > 60dBMic range:0-2mAudio distortion degree: 0.1%Power Consumption: 1WWork Temperature:-20-50 degreeBluetooth Version: 3.0Bluetooth Transmission Distance: 10mPackage Included:1 x Bluetooth MP3 Player FM Transmitter Hands-free Car Kit Charger1 x Audio cable1 x User Manual1 x Remote (1x CR2025 battery NOT included)NO Retail Box. Packed Safely in Bubble Bag.