Support Memory Card:NoSupport Apt-x:No Support AAC:No Feature:None High Definition Support:None Content:AUDIO WIFI Standard:None Wireless Type:bluetooth Sound Track:Double Interface:USB Origin:Mainland China Bluetooth 5.3 Dongle: Product name: USB Bluetooth adapter; Bluetooth version: 5.3 (BLE Low power, low latency) Transmission distance: 20 meters (in barrier-free environment); Support protocols: A2DP,HSP,AVRCP,HID, etc. Product parameters: 1. Bluetooth 5.3+BLE (LMP: 12.45) 2. Compatible with Bluetooth versions such as 5.2/5.1/5.0/4.0/3.0/2.0 3. Classic appearance, bright design 4. Low power consumption, low latency, high-definition audio quality 5. For Win 10-11 driver free, plug and play, supporting Win7 system 6. One connection, automatic reconnection 7. Supports simultaneous connection of multiple devices 8. Wide compatibility (Bluetooth earphones/speakers/Bluetooth mice/keyboards/Bluetooth handles/printers/Android phones) 9. Built in antenna for longer and more stable distances 10. Support protocols such as A2DP/HSP/AVRCP/HID/SBC/AAC Powerful Wireless 5.3 Chip Better user experience HiFi Sound Quality with Lossless Details HD transmission with lower loss, clear human sound with premium sound quality Connect to Keyboard and Mouse Wireless connection for a more organized and tidy desktop office Connect to Phone and Tablet No need to connect to data or network, wireless transmission, efficient and time-saving Connect to Gamepad Smooth and in sync with no lag Plug and Play Driver-free installation for Windows 8.1 and up 20m Wide Connection Range Better antenna signals, covering from bedroom to living room Connects to 5 Devices Simultaneously Stable operation with no lag during multi-device connection Auto-Connect After the initial successful connection, you don't have to pair it again Product size: About 34 * 18 * 8mm