ITEM NAME:BT21-B Car Bluetooth FM Transmitter Handsfree MP3 Player Dual USB Charger Product Description Description: BT21-B Car Bluetooth FM Transmitter Wireless Modulator Handsfree Lossless MP3 Player 3.1A Dual USB Fast Charger Features: 1. Dual USB 3.1A fast charging, battery voltage detection; 2. Support Bluetooth/ TF card / U disk music playback, support Bluetooth hands-free calling; 3. Orange LED screen, which can display frequency, song number and working status; 4. Support folder switch playback function, category playback; 5. Support power-off memory function; 6. Support 2 mobile phones charging at the same time, support charging while listening to songs; 7. Noise cancellation: built-in noise cancellation circuit, make the call sound clearer. Specification: Interface: High-Speed USB2.0 Screen: Orange LED screen Power supply mode: Cigarette lighter socket USB output: 3.1A Supported memory card type: TF card Supported TF card / U disk capacity: ≠¤32GB Power supply: DC 12-24V Supported file types: MP3 / WMA / WAV / FLAC Working current: 50-100mA DC 12V Bit rate: 64-320kbps FM frequency range: 87.5-108 MHz Signal to noise ratio: 85db (FM: 65db) Harmonic distortion:
