Suroskie Plastic and Metal Portable Bluetooth 3.5 mm Streaming Car Adapter with AUX Audio Music Receiver and Microphone for All Smartphone (Multicolour) Product Information Car Bluetooth Receiver: Music or call streaming from your mobile to car speakers - Wirelessly, free and relaxed. Super clear and flow conversation effect.Simple and Easy Wireless Set-Up, Automatically connect, if you need the cell phone connect the receiver automatically, just turn on the Bluetooth of the cell phone first, and then turn on the Bluetooth receiver. Simple operation, normal speaker become hands-free Bluetooth speaker magically, portable for vehicle mounted systems.Features Make your Car AUX audio system and Home Theater AV HiFi Surrounding system become Bluetooth.Simple operation, 3.5mm Male to Male Audio Connector or 5mm Male to Male Audio Cable to connect the speakers and the receiver. High-performance AMP chip can push the headset, and high-power speaker, applicable to all types of speakers. Powerful Bluetooth IC, Ber compatibility. Powered by built-in rechargeable Li-ion battery via mini USB port, long working time and low consumption. (Mini USB cable included). You can play music through your car stereo and answer a phone call via the built-in Mic. Sleep mode for energy saving. Support A2DP V1.2 stereo profile. Specification Dimension : 55mm (L) x 25mm (W) x 10mm (D) /2.17 "x 0.98" x 0.40 "(approx.). Bluetooth : v3.0 + EDR, Class 2. support Bluetooth handsfree function Bluetooth stereo audio profile: A2DP. transmission distance: up to 10 m. Frequency: 2.4 GHz. 3.5mm stereo audio output. Wireless music receiver connects 3.5mm headphone jacks. use with stereo systems/speakers, car stereo, headphones etc. Colour Black. weight: 1.23 oz (35g).