Features: brand new and high quality The wireless bluetooth-compatible adapter supports connections up to 15m/49 feet, and can control long-distance music playback. When you connect the car or other power source with the charger cable, it will automatically turn on after you start or power on the car and automatically connect to the last connected device. When the car is turned off, it will automatically turn off. The built-in chip allows you to directly connect to NFC-enabled mobile phones or other Bluetooth-compatible devices. The latest version of Bluetooth-compatible 5.0, and backward for Bluetooth-compatible 4.2/4.1/4.0/3.0/2.0/1.0. It can for play music on two speakers at the same for time. By connecting a USB or 3.5mm audio interface to 2RCA, you can listen to music wirelessly on two speakers. Support dual audio port connection. For 3.5mm and 2RCA audio ports, it is suitable for more devices (including 3.5mm and 2RCA cables). Specifications: Name: Wireless Bluetooth-compatible Adapter Colour: Black Material: ABS Bluetooth-compatible version: V5.0 and EDR Bluetooth-compatible protocol: A2DP/AVRCP Bluetooth-compatible Distance: 110dB Impedance: 75 Size: about 109x73x29mm/4.29x2.87x1.14in Support multiple audio output ports: 3.5mm headphones, stereo system, speakers can be connected Support: USB 5V for DC output, also can charge devices for iPad, for iPhone System support: all Bluetooth-compatible audio devices, NFC available devices Note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment. Package includes: 1x Wireless Bluetooth-compatible Adapter 1x Micro USB Charging Cable 1x 3.5mm to RCA Cable 1x 3.5mm Audio Cable