1. Enjoy The Wonderful Wireless Experience, Receive/Transmit Two-In-One, Bluetooth 5.2 Chip, Support -HD/LI, Support One-To-One Use 2. Supports One-To-Two, Can Connect Two Bluetooth Devices. When Transmitting, It Can Connect Two Bluetooth Headsets/Speakers At The Same Time To Share Happiness. When Receiving, It Can Connect Two Mobile Phones, Switch At , And Listen To Music/Watch . 3. Powerful Performance And Rich Functions 4. Desktop Computers Are Upgraded To Wireless, Connect To Bluetooth Speakers, Etc., Wired Become Wireless, More Convenient Operation And Connection, High-Definition And Stable Transmission, Support -Ll Low Latency, Experience Beautiful Sound Quality 5. Upgrade The Wired Speakers To Bluetooth To Enjoy Wireless Music. Connect Old-Fashioned Wired Speakers Or Computer Speakers To Solve The Problem Of No Bluetooth Function. Use An Aux Audio Line To Upgrade Old-Fashioned Bluetooth 5.2. Product Name: Bluetooth Audio Receiver And Transmitter Product Model:D500-HD Bluetooth Version:V5.2 Audio Decoding:/Aac//-Hd/(-Ll Supports Transmit Mode) Bluetooth Protocol Support:A2dp/Avrcp/Hfp/ Frequency Range:2400MHZ-2483.5MHZ Frequency Response:20HZ-20KHZ Output Load:16-320ohm Adaptive High Transmission Distance:10-30m (Open Space) Output:AUX Battery Capacity:3.7V/500mAh Listening Time:About 20 Hours Charging Interface:USB-C 5V Compatibility:Android System, 10s System Mobile Phones, Tablets, , Game Consoles, Bluetooth Headsets, Bluetooth Speakers And Other Bluetooth Devices. Note:Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Not Affect The Use. Colour:As Shown Material:ABS+Plastic Package Contents: 1 * Wireless Receiver And Transmitter 1 * Antenna 1 * Connection Cable 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.