【Advanced Bluetooth-compatible 5.4 Technology】Equipped with the latest Bluetooth-compatible 5.4 chipset, this car handsfree device offers lower power consumption and wider compatibility for seamless connectivity. 【Smart Auto Power On】Built-in motion sensor detects when your car door opens, automatically connecting to your phone without the need for manual pairing each time you enter the vehicle. 【Dual Phone Connectivity】Connect two phones simultaneously, perfect for managing both personal and professional calls or accommodating a passenger's device for a complete hands-free experience. 【Long-lasting Battery Life】Features a built-in 650mAh rechargeable battery, providing up to 12 hours of continuous use and an impressive 90-day standby time. 【Versatile Design】Includes a sun visor clip for easy in-car mounting, while its portable nature allows for use during outdoor activities. 【Private Call Mode】Easily switch to private calls by pressing and holding the button for 3 seconds, transferring the audio to your mobile phone for more discreet conversations. 【Voice Assistant Support】Access Siri or other voice assistants by pressing and holding the voice button for 3 seconds, enhancing hands-free functionality. Specifications: Bluetooth-compatible Version: 5.4 Battery Capacity: 650mAh rechargeable Working Time: Up to 12 hours Standby Time: 90 days Auto Power Off: After 3 minutes of inactivity Charging Port: Type-C Special Features: Motion sensor for auto power on, Orange breathing light, Sun visor clip