?The device integrates Bluetooth Receiver and Bluetooth Transmitter£¬ which will bring you much convenience. It can change the Ordinary Speaker into the Bluetooth-enabled Speaker and let the Ordinary TV£¬ MP3 / MP4 and Computer£¬ etc has audio transmitting function.. With this product£¬ the Ordinary Speaker can wirelessly receive and play the music of your smart phones£¬ Tablet PC£¬ notebook and other Bluetooth-enabled music player devices£¬ and the Ordinary TV£¬ MP3 / MP4 and Computer£¬ etc can transmit audio / music to the Bluetooth-enabled Speaker or headphones£¬ etc. The Transmitter &amp; Receiver Adapter offers you the ideal solution to link your music devices you need it anytime and anyplace.? <br>Note: The working and standby time may vary when used with different mobile phones or other compatible Bluetooth devices£¬ usage setting£¬ usage styles and environments.? <br><br><strong>Features:</strong> <br>2-in-1 Bluetooth receiver and transmitter Adapter which incorporates codec for less high audio quality technology. <br>Change the Bluetooth Transmitter &amp; Receiver Adapter into ¡°RX¡± mode£¬ after connected the Bluetooth Transmitter &amp; Receiver Adapter with the Ordinary Speaker via the included 3.5mm audio cable£¬ the Ordinary Speaker is turned into Bluetooth-enabled Speakers. <br>When change the Bluetooth Transmitter &amp; Receiver Adapter into ¡°TX¡± mode£¬ the connected Ordinary TV£¬ MP3 / MP4£¬ CD player and Computer£¬ etc can transmit audio / music to the Bluetooth-enabled Speaker or headphones£¬ etc. <br>Simple one-button switch to shift between Transmitter (TX) and Receiver (RX) mode.? <br>Elegant and fashionable appearance£¬ simple and easy design£¬ compact and portable. <br>Perfectly suitable for Speakers£¬ TV device£¬ MP3 / MP4 and Computer with 3.5mm audio interface. <br>Applications: Car / Vehicular Audio System£¬ Home Audio System£¬ TV Computer MP3 / MP4£¬ etc.? <br>Perfectly suitable for home use£¬ travelers or businessman use.? <br>The Adapter also supports the audio of online games / TV / Movie£¬ and real-music transmission since it with low latency codec.? <br>High-quality built-in rechargeable battery offer long working time.? <br><br><strong>Specifications:?</strong> <br>Bluetooth V2.1+EDR? <br>Bluetooth profile supported:A2DP and AVRCP? <br>Supported codec: SBC? <br>Operation range: Class 2~10 meters? <br>TX mode working time: up to 8 hours? <br>RX mode working time: up to 7.5 hours? <br>Standby time: up to 200hours? <br>Charging Time: about 1.5 hours? <br>Charging input voltage: DC 5V? <br>Battery:170mAh rechargeable Li-polymer battery? <br>Color: Black with Yellow <br>Main item size: 5.7 * 5.6 * 1.8cm / 2.24 * 2.20 * 0.7in <br>Main item weight: 29g / 1.02oz <br>Package size: 15.8 * 10.8 * 5.5cm / 6.22 * 4.25 * 2.16in <br>Package weight: 166g / 5.86oz <br><br><strong>Package list:</strong> <br>1 * Bluetooth Audio Receiver with USB EU Wall Charger? <br>1 * 3.5mm Audio Cable <br>1 * 3.5mm Audio to RCA Cable? <br>1 * USB Cable <br>1 * English / Chinese User Manual