The TOZO T9 Earbuds offer several features designed to enhance your audio experience. Here's a breakdown of the key features and additional information: 1. Crystal-Clear Calls: The TOZO T9 Earbuds feature four microphones and ENC (Environment Noise Cancellation) technology, providing up to 3 times clearer calls compared to other truly wireless earbuds. This ensures that your voice is transmitted clearly during phone calls. 2. Stereo & Immersive Sound Quality: With the advanced Bluetooth 5.3 technology, the earbuds deliver 3D immersive stereo surround sound and a high bass balance. The strong signal and smooth connection ensure a low-latency listening experience. The T9 supports HSP, HFP, A2DP, and AVRCP Bluetooth profiles. 3. IPX7 Waterproof: The earbuds have an IPX7 waterproof rating, making them resistant to water and sweat. The waterproof nano coating protects them from heavy rain or intense workouts, allowing you to use them in various weather conditions. 4. Tiny Size and Secure Fit Design: The T9 earbuds have a mini and comfortable design, ensuring a secure fit for all shapes of ears. They are 100% safe and stable during activities such as running, biking, training, jogging, hiking, and exercising. 5. Long Endurance: The TOZO T9 earbuds provide up to 8 hours of normal use at 60% volume on a single charge. With quick charging technology, you can enjoy 1.5 hours of listening time from just 10 minutes of charging. The powerful battery allows for all-day listening. Additional Information: - ENC Call Noise Cancellation: The four-microphone system with Environment Noise Cancellation technology helps deliver two times clearer calls, improving call quality in noisy environments. - Soft Silicone Eartips and Ergonomic Design: The T9 earbuds feature soft silicone eartips and an ergonomic design that perfectly fits the curve of the inner contour of the ear, providing a comfortable and secure fit. - IPX7 Waterproof Protection: The earbuds are protected with IPX7 waterproof technology, which resists splashes, rain, and sweat. - Wireless Charging: The T9 earbuds support wireless charging, allowing for fast charging. The charging case can be fully charged in less than 2 hours using a wireless charger. - Advanced Bluetooth 5.3 Technology: The earbuds support various Bluetooth profiles, including HSP, HFP, A2DP, and AVRCP, providing in-call stereo sound and improving the transmission speed for a low-latency listening experience. - One-Step Pairing: The earbuds automatically connect to each other when taken out of the charging case. You can then easily pair them with your mobile phone by selecting "TOZO-T9" in the Bluetooth settings. If you accidentally pair only one earbud, there is a "Reset" option available to resolve the issue. Note: It's always recommended to refer to the user manual or official documentation provided by the manufacturer for detailed instructions and troubleshooting steps.