Multifunctional Clip-On Bluetooth Audio Receiver Plug In FM Radio 1. 3.5mm audio port output, for a variety of devices to upgrade the wireless bluetooth function 2. Multi-mode can be easily switched to use, simple operation, to meet the needs of various situations 3. Bluetooth 5.4, 15m range stable connection 4. TF card is plug and play, no network also listen well 5. Built-in FM radio function, plug in wired headphones stereo can listen to FM radio programs 6. Can also be used as a card reader, use the USB-Type-c cable to connect the headset to the computer, or TF card inserted into the card slot screen display PC, you can view the disk on the computer to download the transfer file 7. Digital display design, volume display, power display, memory card number display FM radio channels, different modes of display at a glance 8. Built-in 800mAh battery, long-lasting battery life 9. Lapel clip design clip, can be clamped on the clothes, seat belts, firm and not easy to lose, at any time convenient operation fast 9. Lightweight and compact body, easy to carry 10. Automatic color changing lights, add a sense of atmosphere Parameters: 1. Bluetooth version: V5.4 2. Interface: 3.5mm audio jack 3. Battery capacity: 800mAh 4. Charging port: Type-C 5. Frequency range: 20Hz-20KHz 6. Charging voltage: 5V 7. Receiving distance: 10-15 meters 8. FM tuning range: 87.5-108.0 ΜΗz 9. Charging current: 200-300mA 10. Playback mode: bluetoothTF cardradio 11. Size: 70 x 40 x 25mm 12. Weight: about 38g