K6 Bluetooth 5.0 Receiver Transmitter 2 In 1 Adapter Computer Speaker Car FM (Black) 1. Bluetooth version: bluetooth V5.0 (drive-free plug and play) 2. Music format: APEFLACWAVMP3WMA 3. Internal card capacity: support within 64G 4. Body material: PC 5. Transmission distance: about 10m without barriers 6. Battery capacity: 300mAh polymer lithium battery 7. Support protocol: AVRCP, A2DP 8. Bluetooth mode: Bluetooth receiver, Bluetooth transmitter 9. Various systems: support XPVistaWin7810 systemIOS 10. Output: DC 5V2.1A 11. Music level: HFI high-definition stereo 12. Basic functions: Bluetooth receiver (RX)Bluetooth transmitter (TX)TF card playbackFM transmitter (87.5-108HMZ FM) 13. Support equipment: speakerscarsTVsdesktop computersnotebookswired headphonespower amplifiersprojectors, etc. 14. Packing list: adapter, manual, charging cable (about 0.5m), 3.5mm audio cable (about 1m) 15. Weight: about 35g 16. Size: about 5.5x2.1x1.5 cm Features: 1. High-definition LED digital display, the use status is clear at a glance, using fire-resistant PC material, high-gloss surface technology, comfortable hand feeling 2. Small size, easy to carry 3. Not limited to car models, plug in the car AUX interfaceFM radio to connect to the Bluetooth of the mobile phone, support listening to songsnavigationcalls, the signal is stable and no noise 4. Smart compatible devices, support devices with audio inputoutput interfaces 5. Support TF card, plug and play, built-in smart decoder, can directly play music files in TF card 6. Multi-function buttons, support switch machineplaypauseup and down songvolume updownsound source switchingfrequency adjustment 7. Built-in bluetooth 5.0 chip, plug-and-play driver-free, strong compatibility, more stable connection