ITEM NAME:Car B7 Wireless 3.0 Quick Charge In-Car Bluetooth Fm Transmitter Radio Adap F6U9 Car B7 Wireless 3.0 Quick Charge In-Car Bluetooth Fm Transmitter Radio Adap F6U9 Rated working voltage: 12V Consumption rate: 0.5W Working temperature: 10 to 70 degrees Working temperature : 0~90% Frequency response: 20Hz ~ 15Khz Bluetooth: Support Bluetooth protocol: HFP/HSP, OPP, A2DP/AVRCP, PBAP Signal to noise ratio: 68dB Bluetooth version: v2.1+EDR Bluetooth sound processing - A2DP (Advance Audio Distribution Profile) Bluetooth transmission distance: 5m Working current: 45mA (maximum) Standby current: 25mA () Frequency: 2.402-2.480ghz FM: Fm frequency: 87.5--108.0MHZ Transmitting power: 87dBuv /107dBuv Effective distance: 2 meters Suitable for all types of vehicles. Digital tube display. Dual USB charging port maximum output 5V/3.1A Support stereo FM transmission technology Support U disk memory card music playback (max 32GB) A file that supports MP3/WMA music formats. Automatic power-off memory function Direct car cigarette holder Bluetooth hands-free calling colour:black Material:plastic size:8*6.5*4.5CM Package Contents: 1 * Car Bluetooth player 1 * Instruction manual.Support Bluetooth protocol: HFP/HSP, OPP, A2DP/AVRCP, PBAP. Bluetooth version: v2.1+EDR. Bluetooth sound processing - A2DP (Advance Audio Distribution Profile). Bluetooth transmission distance: 5m. Fm frequency: 87.5--108.0MHZ.