Compact, ergonomic design: These sleep headphones are specially designed for use while sleeping. With an extremely small and discreet earbud design, they provide maximum comfort, especially for side sleepers. The U-shaped, skin-friendly rubber ear pads ensure a secure and comfortable fit all night without pressure or discomfort.Extremely lightweight and comfortable: Each earbud weighs only 0.10 ounces. The ultra-light design ensures minimal sensation in the ears, making them ideal for uninterrupted sleep without the feeling of bulky or intrusive devices.Excellent sound quality: These sleep headphones deliver high-quality audio with clear and immersive sound. Surround sound technology enhances your listening experience, allowing you to relax and fall asleep with rich, enveloping audio.Clear calls in any environment: Featuring advanced noise reduction technology, these headphones enable clear voice calls even in noisy settings. The built-in microphone reduces background noise, helping ensure your conversations remain clear and intelligible.Long battery life and fast charging: Enjoy up to 48 hours of playback on a single charge. The compact charging case extends total battery life to up to 24 hours and provides up to 5 additional full charges. With USB-C fast charging, 10 minutes of charging delivers up to 90 minutes of playback.Specifications: Input voltage: DC5V-1A Battery life: 48 hours (earbuds), up to 24 hours with charging case Transmission range: 15 meters Package includes: Charging case x1 Bluetooth headset (left and right) x1 set USB-C charging cable x1 U-shaped ear tips (one pair) The compact, discreet design and U-shaped rubber ear tips provide lasting comfort without pressureideal for side sleepers. Weighing only 0.10 ounces per earbud, the lightweight construction ensures they remain unnoticeableperfect for comfortable, undisturbed sleep. Experience clear, immersive sound quality designed to help you relax and unwind. Advanced noise reduction supports clear in various environmentssuitable for calls during travel or in busy areas. Enjoy extended playback with up to 8 hours on the earbuds and 24 hours with the charging case. Fast charging provides 90 minutes of playback with just 10 minutes of charge.