This product is designed to transmit audio signal of TV￡? DVD￡? MP3 etc. to Bluetooth receivers￡? earphones or speakers by the Bluetooth wireless technology. With it￡? you can upgrade your ordinary audio devices which does not has Bluetooth function to Bluetooth audio devices. Without connection lines limitation￡? you can enjoy music without bother of messy cables. It would help you to realize a higher quality wireless household life. <br> <br> <strong>Features:</strong> <br> Upgrade ordinary audio devices to Bluetooth audio devices. <br> Supports multi-device￡? one transmitter could connect with 2 Bluetooth devices at the same time. <br> High quality stereo transmission makes sure you can enjoy the auditory feast. <br> Simple operation￡? no need to set up￡? plug and play. <br> Exquisite round shape￡? mini body￡? more smaller and lighter. <br> <br> <strong>Specifications:</strong> <br> Bluetooth version: 4.0 <br> Transmission distance: ￡? 10m <br> Battery duration: 5 hours <br> Charge time: 1.5 hours <br> Material: ABS <br> Color: Black <br> Item size: 4.6 * 1.0cm / 1.8 * 0.4in (D * H) <br> Item weight: 15.0g / 0.5oz <br> Package size: 7.5 * 7.5 * 6.0cm / 3.0 * 3.0 * 2.4in (L * W * H) <br> Package weight: 73.0g/ 2.6oz <br> <br> <strong>Package list:</strong> <br> 1 * Bluetooth transmitter <br> 1 * USB cable (USB to micro USB) <br> 1 * Audio cable (3.5mm) <br> 1 * User manual (English)