1. 2-In-1 Bluetooth Transmitter And Receiver Enables Bluetooth Functionality On All Your Devices. Btc880 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, Or Aux Audio Output Port. Compatible With 99% Of On The Market. Low Latency Supports TX And RX Modes. 5. Supports Audio Streaming To Two Headphones At The Same Time. Use 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; -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.