<p>[Superior Sound Quality] - Designed with the large 7.2mm speaker driver, the T13 wireless headset delivers music with a wider soundstage and exceptionally clear sound. 4 built-in microphones improve call clarity and ENC noise reduction technologycan reduce surrounding noise to ensure your voice is clear and free of interference. [Fast Charging and 40 Hours Playback] - T13 Bluetooth headphones support USB-C fast charging, which can last 1 hour after just 5 minutes of charging. A single charge of the Bluetooth headset can support up to 6 hours of listening time, andthe portable charging box increases the total playing time of the wireless earbuds to 40 hours. [Bluetooth 5.1] - T13 wireless Bluetooth earphones equipped with the latest Bluetooth 5.1 technology, compared to Bluetooth 5.0, offer more stable wireless connection, faster transmission speeds and greater compatibility. An integrated low-latencychip specially designed for video and video call playback ensures perfect synchronization of sound and image with an extremely low input latency of 50ms. [Auto Connect and Touch Control] - After the first pairing, the next time you turn on the charging box, the wireless headset will automatically turn on and connect with the last paired device. T13 wireless earbuds are very simple and smart. Turnon sleep mode, the touch function turns off automatically, so you don't have to worry about accidental touches when you sleep and work out.</p>