Bluetooth sleep headphones is machine washable just remove control pod first.
Wireless sleep headphones feature Bluetooth 5. Ultra Thin Speakers Perfect Sleep Headphones for Side Sleepers: Bluetooth Headband built-in 2 ultra-thin speakers devices control module is in the middle of sleep headband no press the ears. Excellent 10 Hours Service Time and Premium Audio Quality: Our sleep headphones bluetooth built-in advanced rechargeable lithium battery which can work more than 10 hours and 2-2.0 inches (H) x 4.