T20 Sleep Noise Reduction Mini Silicone In-Ear Bluetooth Earphones 1. Core Positioning: T20 mini in-ear Bluetooth headphones, designed exclusively for sleep, offering a Zero-sense Comfort experience with no pressure on the ears when worn side-sleeping. 2. Wearing Experience: Features skin-friendly silicone wrapping and a 108 degrees ergonomic angle. Its invisible, compact size fits snugly in the ear canal, ensuring no discomfort even after long wear and staying secure during movement. 3. Sound Quality: Equipped with a PU polymer composite membrane and neodymium iron boron magnet driver, it supports 360 degrees panoramic surround sound for a cinema-like audio experience with distinct bass and mid-high frequencies. 4. Noise Cancellation & Calls: Provides physical noise isolation and dual-mic call functionality, dynamically reducing ambient noise, accurately capturing and enhancing human voice for clear calls outdoors. 5. Bluetooth Performance: Adopts Bluetooth 5.4 chip for fast transmission, low latency, and stable connection. It supports a low-latency gaming mode and is compatible with Android, Apple, and Windows devices. 6. Battery Life & Charging: Offers up to 3.5 hours of single-use playback and 28 hours of total playback with the charging case. It features a Type-C charging interface, automatic pairing when removed from the case, and automatic power-off when stored. 7. Smart Controls: Supports high-sensitivity smart touch controls for functions like playpause, track switching, voice assistant activation, and mode switching. Product Specifications 1. Bluetooth Version: V5.4 2. Transmission Distance: 10 meters (unobstructed) 3. Driver Size: Approx. 6mm 4. Charging Port: Type-C 5. Battery Life: 4-8 hours 6. Waterproof Level: Daily waterproof 7. Material: PC + ABS 8. Earbud Case Dimensions: 5.2x5.0x2.9cm