Specification:Frequency channels:88.1~107.9MHzTransmit distance:5mAudio format:MP3/WMA/WAV/SBCSNR:68dBDistortion:0-1%Frequency response:20Hz-15KHzLeft and right channel separation:>60dBBluetooth version: Bluetooth v3.0Bluetooth Profiles: HFP/HSP，A2DP/AVRCPOperation voltage range:DC9V~26VPower consumption:<1WOperating temperature: -10~70 DegreeWorking humidity: 0~95%Package Include1x Bluetooth FM transmitter1x instruction1x Digital remote control (Without battery)NOTE:As the effect varies from monitor to monitor， there is irrevocable slightly difference in colors between the color showed on your monitor and the real one， So if dear you can not accept this very little difference， be cautious before you making the orders.thanks for understanding.