Description: 1. Support hands-free calling, built-in microphone, convenient and secure answering phone: 2. Noise handling during call CVC, wind noise suppression, full duplex call technology 3. Support mobile phone A2DP function, directly play high quality mobile music after connecting to 4. After power-on, it will automatically connect back and automatically enter the pairing state. 5. Support TF card expansion to play MP3/WAV format music 6. Comes with car charger, output 5V-1000m, can charge handheld terminal device 7. Support TF card (32GB, 16GB, high speed 6 or more) : version: V3.0+EDR Frequency: 20h-20khz Sensitivity: 42 decibels + 3db360 Voltage: 5V+-0.5 Operating current: 45mA Standby current: 25mA Frequency: 2.402-2.480ghz Effective distance: 5 meters Sensitivity: -92dbm RF output: 4dbm FM FM: 87.5MHZ-108.OMHZ Transmit power: 87dbuv/107dbuv Effective distance: 2 meters Specification: Material ABS Power mode, cigarette lighter type car MP3 Screen size, 1.2 inches Power supply voltage, 12-24 (V) Rated working voltage --------12~24V Consumption rate ------------0.5W Working temperature --------- -10~70 degrees Working temperature --------- 0~90% Frequency response ------------20Hz15Khz Audio format ---------MP3 Support protocol---HFP/HSP, OPP, A2DP/AVRCP, PBAP Signal to noise ratio ---------68dB version ------------v3.0+EDR sound processing - A2DP (Advance Audio Distribution Profile) transmission distance --------10~15m FM transmission frequency ---------87.5~108.0Mhz USB fast charge output ---5V/2.1A Size Chart: Size: 8 * 4 * 8 cm Package Includes: Car transmitter x1 manual x1 Note: THANK YOU FOR SHOPPING WITH US! Have a nice day