?YOIDESU SERVICE?Up to 10 hrs of talk time, 500 hrs of standby time & about 2 hours to fully charge. All bluetooth car adapter from our company enjoy the lifetime after-sale service. We firmly believe you'll love our bluetooth receiver for car, and if you aren't absolutely satisfied, return them within 60 days for a refund, no questions asked. ?SAFE DRIVING?This bluetooth hands free car kit Support for Siri voice control, you can make phone calls, send texts or get driving directions from GPS applications, you will also hear voice guidance during use, improved oversized keys for worry-free operation, so you can stay fully focused on driving. ?CLEAR CONVERSATIONS?The Car Bluetooth Speakerphone Equipped with Advanced CSR Bluetooth 5.0 chipset and CVC8.0 double noise reduction technology, the microphone records only your voice and eliminates all the background noise no matter where you are!. ?FULL VOICE BROADCAST and DIGITAL AMPLIFIER? Multipoint speaker phone full voice broadcast, will not lost any calls. The built in digital amplifier greatly enhances the volume and sound effect. Car speakerphone advanced multi point connection, support 2 mobile phones online at the same time. Built in digital signal processornoise cancellation function. (CVC8.0 double noise reduction technology). ?HIGH PERFORMANCE? Car Bluetooth speakerphone high performance version Bluetooth chip V5.0, stable output performance. Auto power on off, labor saving and worry free. Mic and Voice control] Wireless Bluetooth car speaker omnidirectional microphone design, calls are as clear as face to face. Support for Siri voice control.