VIKEFON BT-21 Bluetooth 5.0 Adapter Bluetooth Audio Transmitter Receiver

1. Bluetooth version: V5.02. Support protocol: RX supports A2DP, AVRCP, TX supports A2DP3. Working frequency band: 2.402GHz-2.480GHz4. Power level: Level 15. Sensitivity: -80dBm is less than 0.1% BER6. Signal to noise ratio: greater than or equal to 75dB7. Distortion: less than or equal to 0.1%8. Support dual stream (TX mode supports one transmitter to connect two Bluetooth speakers or headphones at the same time to use one CODEC)9. Support multi-point connection (RX mode supports connection of two mobile phones)10. Codec mode: TX is apt-X HD, apt-X LL, apt-X, SBC; RX is apt-X HD, apt-X LL, apt-X, SBC11. Note on using APTX: apt-X HD CODEC is preferentially supported in single connection (the connected device must also support apt-X HD)12. Built-in battery: 1000mAh13. Charging current: about 200mA14. Charging time: about 4.5 hours15. Life time: RX is greater than 20 hours, TX averages about 15 hours16. Bluetooth distance: greater than 80m (straight line without obstruction)17. Charging method: Micro USB 5V/0.5A18. Input/output connection: SPDIF interface, I2S AUX interface19. Compatible: Android, IOS system phones, tablets and Bluetooth speakers or headphones that support A2DP protocol20. Dimensions: 114 x 100 x 20mm21. Weight: 270gSpecification: Package Weight One Package Weight 0.27kgs / 0.59lb One Package Size 15cm * 14cm * 5cm / 5.91inch * 5.51inch * 1.97inch Qty per Carton 106 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 106 pcs = 18762 pcs40HQ: 412 cartons * 106 pcs = 43672 pcs