Key Features: – Bluetooth Version 5.3 EDR: Enjoy seamless connectivity and enhanced data transmission with the latest Bluetooth 5.3 EDR technology, providing a stable and efficient connection. – Extended Talk and Music Time: With up to 90 hours of talk time and music playback, the RD M-165 ensures you stay connected and entertained throughout the day without the need for frequent recharges. – Long Standby Time: Benefit from over 800 hours of standby time, ensuring your earphones are always ready when you are. – Fast Charging: The Type-C charging port allows for quick recharges, with a full charge taking just 1-2 hours, keeping your headphones ready for use with minimal downtime. – High Battery Capacity: Equipped with a 380mAh battery, these headphones offer robust power management for extended usage. – Impressive Transmission Distance: With a transmission distance of 32 feet (10-15 meters), you can enjoy freedom of movement without losing connection quality. – Superior Audio Quality: Featuring a sensitivity of 120dB at 1kHz and an impedance of 32 ohms, the RD M-165 delivers crystal-clear sound and deep bass, covering a frequency range of 20Hz-20kHz. – Supported Profiles: Compatible with HSP, HFP, A2DP, and AVRCP profiles, ensuring broad compatibility with various devices and functionalities. – Advanced Microphone: With a mic sensitivity of -42dB and an impedance of 2200 ohms, experience clear voice transmission for calls and voice commands. – Magnetic Auto Connect/Disconnect: Effortlessly manage your headphones with magnetic auto-connect and disconnect features, enhancing convenience and ease of use. – Voice Assistance and Vibration Mode: Integrated voice assistance and vibration mode offer added functionality, making interactions and notifications seamless. – Touch Sensor Technology: The touch sensor headphone design allows for intuitive control, providing a sophisticated user experience. – 6-Month Guarantee: Enjoy peace of mind with a 6-month guarantee, ensuring reliable performance and quality assurance. Elevate your audio experience with the RD M-165 headphones bluetooth neckband, where advanced technology meets superior sound quality for a truly immersive experience.