Description: Features: 100% brand new and high quality. 1.100% brand new and high quality. 2.Compact and mini-sized design,easy to take along with. 3.Built in microphone, supports handsfree function. 4.Enable you to enjoy music and voice in the Bluetooth-enabled multimedia or music player wirelessly with a companion Bluetooth Stereo headset. 5.Bluetooth version: 5.0 Specifications: Size: about 6cm x 2cm x 0.8cm Supported profiles: A2DP, AVRCP The receiver distance: about 10m (without Block) Instructions for Use: 1. Insert the receiver into the speaker's USB interface. 2. Turn on mobile phones or other devices that support Bluetooth (except computers, which do not support computers), and search the surrounding bluetooth devices to find a device called BT-DONGLE and then its' pairing code is 0000(if asked),after the pairing is successful, the led light will slow down. 3. Then you can select the music via Bluetooth from a cell phone or other devices(except computers, which do not support computers), a great music will play from speaker. Package Included: 1 x USB Bluetooth Music Receiver(no retail package) Note: 1. Due to manual measurement, there may be a slight tolerance of 1-3cm. 2. Due to difference between different monitors, the picture may not reflect the actual color of the item.