The best price of Generic Bluetooth Hands-free Kit Car MP3 Player Multi-function Wireless Car FM Player Car Dual USB Charger with LED Screen Support Hand-free and TF Card. WirelessWireless version: V3.0 + EDR Sensitivity: -92 dBm Bluetooth Frequency: 2402-2480 MHZ Frequency: 20 HZ-20 KHZ Working voltage: 5V, 2.1A Working current: 45 mA MAX Standby current: 25 mA MAX Effective distance: 5m RF output: 4dBmFMFM: 87.5 MHZ-108.0 MHZ Emission power: 87 dBuv/107 dBuv Effective distance: 5mFeatures1. This device is a MP3 player developed for car-used, which equipped with professional high-performance bluetooth module and MP3 decoder chip. 2. It can play and transmit the music from TF card to car stereo via FM radio signal. 3. It can transmit your mobile phone’ s music to car stereo via bluetooth. 4. It can also be used as a hands-free car kit during driving. 5. Support hands-free calling, built-in microphone, convenience and safety for answer the phone. 6. Noise cancellation by CVC, wind noise suppression, full duplex technology. 7. Support A2DP, play mobile music with high quality once connecting by bluetooth. 8. Auto pairing once turn it on. 9. Support MP3/WMA/FLAC from TF card. 10. Will come with car charger, output 5V-1000mAh, can charge the device in car.11. With U disk, car charger, TF slot, support FLAC, Car voltage, AUX connector.