Sinvitron 2-in-1 Bluetooth Transmitter and Receiver One-to-Two Bluetooth Wireless Stereo Audio Adapter with 3.5mm Stereo Output for Speakers, Headphone, TV, PC, iPod, MP3 / MP4, Car or Home Stereo Bluetooth everywhere: Bluetooth-enable all 3.5mm media devices (enable Bluetooth receiving: speakers, headphones and more; enable Bluetooth transmission for: MP3, CD / DVD players, e-readers, TVs and more). Simple one-button switch to shift between transmitter(TX) and receiver(RX) mode. You should power it off before you switch it to Rx/ TX mode. Ideal for home or vehicle audio systems Bluetooth transmitterWork with any type and brand of device such as TV, PC, CD player, iPod, Kindle Fire, MP3/MP4 etc. up to 30 feet working range. Easy pairing with Bluetooth stereo headset, headphones, speakers and other Bluetooth stereo audio enabled system and Support Two Bluetooth Headphones Or Speakers Simultaneously. Bluetooth Receiver: for Car or Home Stereo. speaker or car stereo via 3.5mm or RCA cable, and pair it with Bluetooth-enabled audio sources such as your smartphone, tablet or laptop to enjoy music wirelessly. it can still be paired to two of your smartphones or tablets, but the receiver can only receive the audio from one of the two paired devices. Small, Lightweight and Durable: High performance Bluetooth 4.0 (High-Fidelity) with A2DP for enhanced audio quality, allows you to enjoy the stereo music without wire restriction or watch TV quietly (not for answering calls) Super Long Working Time: Build-in 300mAh lithium battery use up about 7 hours, or plugged with AC adapter without worrying about the battery, enjoy your favorite wireless content all the time.