Specification: Origin: Mainland China Interface: 3.5mm Wireless Type: Bluetooth-Compatible WIFI Standard: None Content: AUDIO High Definition Support: None Model Number: X6 Material: Plastic Color: Black Effective distance: 10m Compatibility: All phones with Bluetooth-Compatible and TF cards Working hours: 8 hours Frequency: 2.4GHz Product features: Bluetooth-Compatible earphones, Bluetooth-Compatible receivers, audio receivers, audio converters Product size: 54.9x25x12.8mm/2.16x0.98x0.50inch Packaging size: 110x90x30mm/4.33x3.54x1.18inch Gross weight: 63g Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement. Included: 1 x Bluetooth-Compatible Music Receiver  1 x Usb Cable  1 x 3.5 Metal Head  1 x Instructions 1. Bluetooth-Compatible 5.0+EDR connectivity: With a signal range of up to 10 meters, this car adaptor is perfect for those who want reliable, long-range connectivity without any interruptions. 2.Hands-Free Calling: Stay safe on the road with this audio adapter support for hands-free calling. Simply connect your phone and enjoy crystal-clear calls without ever taking your hands off the wheel. 3.Support for Bluetooth-Compatible A2DP: With support for Bluetooth-Compatible A2DP, this receiver delivers high-quality audio streaming. Whether it's music from your phone, laptop or tablet, you can count on this receiver to deliver exceptional sound quality. 4.Power-saving Sleep Mode: This receiver features a power-saving sleep mode that helps to conserve energy when you're not streaming audio. This feature comes in handy when you want to use the receiver for extended periods of time. 5.Portable: This stereo receiver is extremely portable, making it perfect for users who want to take their audio experience with them on the go. It's easy to use too, simply plug it into any device with a 3.5mm audio jack and enjoy instant Bluetooth-Compatible connectivity.