Wireless 3.5mm Car Bluetooth Mini Receptor Receiver Audio Speaker Adapter AUX Product Features： STEREO SOUND QUALITY：Compared with the dim/quiet sounds on the market, this mini blue-tooth adapter adopted special quality chip for improving sound quality which means a superior audio performance to spoil your ear and never feeling bored while driving. DOUBLE LINKS & COMPACT CLIP：Our blue-tooth receiver adapter can connect two blue-tooth devices at the same time for enjoying music and won't miss any calls. Pen clip mini design, easy to carry, super convenience to answer phone calls while in fitness or workout. CAN BE USED WHILE RECHARGING：It can be kept plugged into your car stereo at the same time charging in the USB port while in use. 4 hours play and talk time, about 1.5 hours can be recharged. (Connected with this blue-tooth car kit via 3.5mm audio cable/adapter then pair your phone to achieve listening music or answering call) HANDS-FREE CALLING：Make your car aux audio system and home theater av HiFi surrounding system become blue-tooth compatible, get music from blue-tooth device such as for iPhone, iPad, iPod, HTC, Samsung Smart cellphone or Bluetooth PC, Laptop,tablets, other smartphone, most speakers, TV and radio. EASY CONTROL & SATISFACTION GUARANTEE: Easily plugs into any powered PC speakers, Car & Home Stereo Sound System and A/V receivers using 3.5 mm jacks. Come with a user manual, you can play/pause/skip music/answer phone calls/redial the last called number or control music on the receiver Product Specification： Type：Bluetooth Receiver Bluetooth Version：Bluetooth V4.1+EDR Transmission Range：10m (Barrier-Free) Interface：3.5mm Support Protocol：A2DP Product Color：Black Working time: 3~5 hours Package Included： 1 x Bluetooth Receiver 1 x USB cable 1 x Manual