Description: 1. Small body, big role: wireless listening to songs, file sharing (does not support IOS mobile phones) 2. Powerful functions (dual mode, low power consumption, high sound quality, support more than 3 wireless devices at the same time, support wireless service sharing) 3. Compliant with the wireless 5.0 specification, the distance is 10-20 meters 4. The outer cover of the product should be flat, clean, without mechanical damage, and without embroidery on the contacts 5. Scope of application: a. Wireless communication between mobile phones and hands-free devices, which is also the first popular application b. Wireless network between computers within a specific distance c. Wireless connection between computer and peripherals, such as: wireless keyboard, mouse, headset, printer, etc. d. File transfer between wireless devices e. Wirelessization of traditional wired equipment, such as: medical equipment, GPS, barcode scanners, traffic management equipment f. Wireless bridge between several Ethernets g. 7th generation home game console, wireless gamepad h. Relying on wireless support to enable PC or PDA to achieve dial-up Internet access through the phone's modem i. Real Time Location System, (RTLS), which employs "nodes" or "tags" embedded in the tracked item "card readers" that receive and process wireless signals from tags to determine item location Features: Size: 4.5*4.5*1.5cm/1.77*1.77*0.59 inches Material: ABS Weight: about 30 grams Model: LX1815 (5.0 adapter) Frequency range: 2.4GHz (2.402-2480MHz) Transmission distance: 10M-20M Voltage: DC 5V Interface type: USB Transmission rate: 3.0Mbps (nova5 Pro measured 220KB/s) Operating system: Win 8/Win 10 (download required) List: 1*USB Wireless Adapter