Noise Cancelling Bluetooth Headset: Dual mic technology cancels background noise and wind, and can separate your voice from up to 80 dB of background noise. This helps you answer calls in noisy environments and enjoy clear calling plus quality music anytime and anywhere. Bluetooth V5.0 Technology: Fast pairing with the majority of Bluetooth devices. AptX HD Technology with Low Latency enables realtime audio transmission, giving you seamless wireless calling and listening. Comfortable and Convenient: Designed to fit either ear. The retractable ear hook and flip arm can rotate for a firm, secure fit. Lightweight and comfortable for extended wear. Ultimate comfort ear gel comes in 3 sizes for a certain fit. Includes a unique end carrying case to protect the headphones from damage and loss. Long Battery Life: 5 hours talk time, 5 hours music playback, and 320 hours standby. Fully charged in 1.5–2 hours. Onekey control to turn on/off, answer and reject calls, and end or redial the last call. Use scenarios: Conduct business calls in noisy environments such as busy streets, offices, or during travel, while maintaining clear voice transmission. Pair with Bluetooth devices quickly for onthego calling and music enjoyment, with low latency for realtime audio. Enjoy music or podcasts during commutes or travel, with allday comfort and portable protection in the included case.