1. 2-In-1 Bluetooth Transmitter And Receiver Enables Bluetooth Functionality On All Your Devices. Btc880 Once Again Offers The Ultimate Audio Experience With Built-In Battery And Volume Control 2. Transmitter - Turn Your Tv, Set-Top Box, Tv Box, Dvd, Etc. Into Bluetooth Enabled And Then Transmit Audio To Any Bluetooth Headset/Speaker. (Supports 1 To 2, Can Connect 2 Bluetooth Headsets To Receive At The Same Time) 3. Receiver - Bluetooth-Enabled Wired Speakers, Speakers, Home Theater, Etc. Can Receive Wireless Audio From Any Bluetooth Audio Device, And Can Receive Wireless Audio From Pc Computers, Mobile Phones And Other Devices; 4.Support Digital Optical, Rca Or Aux Audio Output Port. Compatible With 99% Of TVs On The Market. Aptx Low Latency Supports TX And RX Modes. 5. Supports Audio Streaming To Two Headphones At The Same Time. Use Aptx Low Latency To Eliminate Lip SYNC Lag. 1. Name: Transmitter + Receiver (2 In 1) 2. Charging Interface: Type-C 5V 3.Bluetooth Version: 5.0 4. Transmission Distance: 10m 5. Charging Time: 3 Hours 6. Battery: 500mah Lithium Battery 7. TX Working Time When Transmitting: 24 Hours 8. RX Working Time When Receiving: 21 Hours 9. Function: Supports 1 To 2 (The TV Can Be Connected To 2 Bluetooth Headsets); Transmitting And Receiving Can Be Switched To Dual Modes, Hifi Level Sound Quality; Aptx-Hd Lossless Hifi Cd Level Sound Quality Transmission 10.Colour:As Shown 11. Material:ABS Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use Package Contents: 1 x Bluetooth Audio Transmitter 1 x Type-C Charging Cable 1 x 3.5mm Audio Cable 1 x English Manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.