Atill Multipoint Connection 4.1 Bluetooth Audio Music Receiver A2DP Wireless Adapter with 3.5mm AUX Port and Hands Free Calling for iPhone Samsung Android, Headphone, Speakers, Car & Home Stereo etc Multipoint Connection and Hard Free:The Bluetooth Receiver can connect two blue tooth devices simultaneously, and switch phone to play music. Music and calling switch conveniently makes your driving safely. It will provide you super clear conversation effect with hand-free function of answering/Ending/Rejecting/Redialing a call. Universal compatibility: Works with iPhone, iPod, iPad, Tablets, Other Smartphone, most speakers, TV, and radio, easily plugs into any powered PC speakers, Car & Home Stereo Sound System and A/V receivers using RCA or 3.5 mm jacks. Mini Design and High Quality Sound: Bluetooth Version 4.1. Compact, mini lightweight for portable use and its high quality sound conversion effect makes you enjoy a great listening experience. Automatically connect: The Bluetooth Receiver will connect to the last connected phone automatically when it turns on. (Please make sure enable the blue tooth function of your phone before turn on the device) PACKAGE AND WARRANTY: 1 pack Bluetooth audio receiver,1 pack Micro USB Cable ,1 pack 3.5mm Audio Cable, 1 Pack 3.5mm audio metal adapter and 1 paper user manual in one package. You can enjoy risk free use or perfect replacements within one year.