Bluetooth Receiver Kit A2DP 14-hour Playback AUX Adapter - BlueGate by GOgroove - Wireless Music Streaming to Stereos, Outdoor Movie Speakers, & Headphones from Phones, Tablets, more Bluetooth players WHAT IT DOES: The BlueGATE receiver connects to playback devices using a 3.5mm AUX connection to wirelessly receive audio signal from Bluetooth-enabled media players like smartphones, tablets, etc. SOLVES PROBLEM of wanting to stream music from your smartphone to cars/headphones/speakers that don't have Bluetooth built-in: connect the BlueGATE to a headphone jack, easily pair, & enjoy wirelessly 2ND GENERATION UPGRADES include upgrades to Bluetooth v3.0, longer battery life (now lasts 14 hours with single charge), A2DP & AVRCP profile enhancements IN THE BOX you'll find the BlueGATE receiver, a 3.5mm audio coupler (for connecting headphones), and a USB charging cable TECH SPECS: 3 Year Manufacturer's Warranty | Bluetooth: v3.0 | Profiles: A2DP & AVRCP | Signal range: 30 feet | Charging time: 3 hours | Audio playback: 14 hrs | Power: USB 5V DC | Output: 3.5mm AUX <span class="a-text-bold">Car audio systems</span> (with AUX port) <span class="a-text-bold">Headphones</span> (3.5mm audio coupler included) BlueGATE Bluetooth receiver USB charging cable 3.5mm audio coupler