What's in the box:

Mini BT Adapter BT5.0 Receiver Transmitter USB Wireless Audio Transmitter Low Power Consumption Small Size (Standard)

Features:
Adopt BT5.0 chip, 20m transmission distance(no barrier), stable signal.
Small size, easy to carry and use, not occupy spaces.
Arc design, easy to grasp, easy to plug and pull, not affect adjacent interface.
With this BT adapter, you can connect your PC/laptop with mobile phone, tablet, mouse, keyboard, BT headset, BT speaker, game console, printer and other devices which have BT function.
Win8 or above system without drive, automatically compatible with BT5.0 and below devices. Under Win7/XP system, you need to install a driver, compatible with BT4.0 and below devices.

Specification:
Type: BT adapter
BT version: V5.0
Transmission distance: Up to 20m(barrier-free)
Interface: USB
Item size: 1.5 * 1.2 * 0.4cm /0.59 * 0.47 * 0.16in

Packing list:
1 * BT adapter

Note: Please contact customer service to get the driver installation package after purchase.