This handsfree device has a strong and is designed for wireless communication and convenience.The hanging structure avoids taking up space inside the car and provides excellent call quality.It supports the connection of one mobile phone at a time.The microphone uses DSP technology for cancellation and noise suppression, providing full-duplex sound quality. version is 3.0+EDR with English voice support.The operating frequency range is 2.4 to 2.48GHz.connection can reach up to 10 meters and will automatically shut down after being out of range for 5 minutes.It supports Bluetooth protocols including Hands-Free, Headset, and AVRCP.The device includes DSP noise suppression and cancellation, allowing clear conversation even when driving at 120 km/h with the window open.-fidelity speakers are included for music enjoyment, along with a -sensitivity microphone. The is a 3.7V 500mAh polymer lithium.Talking time is approximately 20 hours and standby time is around 41 days.time is about 3 hours and the input voltage is 5V.The speaker power is 2W. Installation is simple thanks to the magnetic attachment.It securely stays on the car visor without extra tools or complex setup.This a hands-free solution that is stable and ready for use during any drive. The device supports music streaming and provides clear audio.With Bluetooth 4.1 technology, it connects quickly to smartphones for uninterrupted music and podcast playback.It works well with car radios and music apps. The compact and lightweight design makes it suitable for any vehicle.It offers compatibility with a range of Bluetooth devices, including non- car stereos, making it a flexible audio solution for drivers. Compatibility Disclaimer: This is an aftermarket replacement part.Any brand names or model designations mentioned are used solely for the purpose of demonstrating compatibility.