Feature:1. The bluetooth receiver change the traditional speakers into bluetoothenabled ones. After paired, play music wirelessly from your bluetoothenabled smart phones, laptop, tablet, etc. Support automatic reconnection.2. Great hardware, bluetooth 4.1 + EDR ensures stable signal, superfast data transmission and HIFI stereo sound.3. Compatible with most speakers, connect the bluetooth receiver with any audio input devices, stereo system (car stereo systems, home audio system) & speaker through standard for RCA or 3.5 mm jack.4. Integrated multipoint technology, can simultaneously connect two smarts phone. Also support voice prompt. Embedded 48MIPS dual for IOS DSP coprocessor.5. Support noise suppression and aftersound cancellation, offering you magnificent stereo sound & wonderful sound quality.6. Compatible with lossless audio format. Support stereo codec. Support AUX output.7. Superior wireless performance, transmit up to 30 ft away with line of sight.8. Perfectly compatibility for IOS / for android smart phones, tablet PC and other bluetoothenabled devices.9. Bluetooth receiver is specially designed for car stereo systems and home audio system. And, it can change the traditional car stereo systems and home audio system into bluetoothenabled ones, and easy to pair with bluetoothenabled smart phones, laptop, tablet,etc. With this product, you can greatly enjoy music from your phone, laptop & mp3 without the hassle of cables. It is perfectly suitable for the car owners.Specification:Condition: 100% brand newItem type: Bluetooth Audio Adapter ReceiverMaterial: ABSColor: As picture shownWeight: Approx. 140g Bluetooth version: 4.1Compatibility: for Android system, for IOS system mobile phone or tablet PC, and all Bluetooth audio devices, etc.Transmission distance: >20M (open space)Output connection: 3.5MM stereo interfaceWorking current: 18-28MAStandby current: <400uACharging current: 250MABattery type: polymer lithium batteryBuilt-in battery: 300MAHCharging time: about 3HWorking time: about 8-10HLife time: >15HCharging method: Micro USB 5V/0.5ABluetooth specification: Bluetooth V4.1+EDRSupport agreement: AVRCP 1.5, A2DP 1.3, HFP 1.6, HSP 1.2, SPPV12.Package List:1 xStereo host1 x Instruction1 x For RCA cable1 x 3.5 Audio heads line1 x Charging cable