ENJOY WIRELESS CONNECTIVITY: This Bluetooth receiver adapter transforms non-Bluetooth devices via 3.5mm Aux port. Power up car stereos, wired headphones, home audio systems, and more. Plug and connect LONG LASTING BATTERY LIFE: The Bluetooth receiver only needs 3 hours of charge time to give you 14 hours of audio playback. The device comes with USB charging cable. PROVIDED 3.5mm AUX COUPLER: No Aux port into your device? Use the provided 3.5mm Aux Coupler to connect to wired devices such wired headphones, phones, tablets, mp3 players, speakers, and more WIRELESS STREAMING DISTANCE: Wireless stream your Bluetooth enabled device from 30 feet from your now "wireless device". Walk around your room with your headphones while your phone is charging. 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