Mini Wirele USB Adapter Drive-free USB Adapter Receiver Transmitter Bluetooth-compatible 5.3 Support Windows 8.1 Win10 Win11Feature:1. Bluetooth-compatible Version:Dual mode supports Bluetooth-compatible 5.3 BLE (backward compatibility 2.0/3.0/4.0/5.0).2. Stereo Audio Transmiion:Support 3Mbps Bluetooth EDR data rate; Dual mode EDR/LE stereo audio transmiion is supported.3. Long Transmiion Distance:5.3 Bluetooth-compatible adapter, lower power consumption, lower latency, and longer transmiion distance. Under the condition of no obstacle, the signal of 20 meters long distance transmiion is strong.4. Supported Devices:Bluetooth-compatible headset/Bluetooth-compatible keyboard/Bluetooth-compatible mouse/Bluetooth-compatible speaker/mobile phone/printer/computer/game controller.5. Satisfaction Guarantee:We strive to provide each customer with the highest standard of customer service to ensure you have a pleasant shopping experience. If you have any iues, inquiries or need aistance, please feel free to contact us directly.Specification:Model: BT604Color: blue, red, green (optional)Bluetooth-compatible version: dual mode supports Bluetooth-compatible 5.3 BLE (backward compatibility 2.0/3.0/4.0/5.0)Interface: full-speed USB 2.0 interfaceFrequency band range: 402-248GHZ ISM frequency bandEffective distance: 10-20mLED indication: power on, connection, standby.System support: Windows 8.1, Win10, Win11.Software support: driverleChipset: ATS2851Supporting configuration files: A2DP/SBC/AAC/HSP/AVRCP/HID, etcWorking temperature: - 10-50 Storage temperature: - 20-70 Supported devices: Bluetooth-compatible headset/Bluetooth-compatible keyboard/Bluetooth-compatible mouse/Bluetooth-compatible speaker/mobile phone/printer/computer/game controllerSize: about 25x17x8mm/0.98x0.66x0.31inchWeight: 3g Note:Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!Please allow 1-2cm measuring deviation due to manual measurement. 1 x USB Adapter