[Sleep Headphones & Bluetooth Headband] 2 Pack Bluetooth headband headphones (Black&Grey) with built-in speakers and microphone enable to answer the call hands-free, double-layer 95% Polyester & 5% Spandex soft lining suitable for multi-occasional such as workouts, jogging, yoga | [Immersive Stereo Sound] Bluetooth Headband Headphones made of two 30mm stereo speaker and two 12.5mm ring neodymium magnet motor deliver pure and balanced audio output with loud sound | [Thin Speaker] headband headphones for sleeping with 0.2 inch ultra-thin speaker plus memory foam cover, no pressure to your ear, comfortable bluetooth headband headphones for side sleeper, also good options for running, hiking | [Bluetooth low power technology] wireless sleep headphones use the Newest Bluetooth technology, built-in 250mAh rechargeable lithium battery, can play 17 hours of music or talk time, standby time 100 hours, charging time 1.5-2 hours(Red indicator during charging). Easy to charging with USB-C cable through charging port.(Recommend you to full charging the device before using it,the indicators shows red in charging and turns blue once fully charged) | [Detachable and washable] The headband earphones are easy to assemble, the wireless speaker inside the headband is detachable and the headband are washable. You will get 2 x Bluetooth Headband (Black and Grey), 1 x USB-C Cable, 1 x User Manual.