Come and Check Our Branding Solutions.Built-in premium high-performance battery. Update the capacity from 200mah to 240mah and charge via USB Cable, charge about 2-2.5 hours can provide more than 9 hours playing time. If you fall asleep with it on and the battery runs down, this sleep mask with bluetooth headphones won't beeps to wakes you up, you can sleep peacefully all night. Wearing this sleep headphones eye mask, insomnia will disappear as you allow your natural melatonin to flow and drift to sleep. With total block out design, this bluetooth eye mask is perfect for Relaxation, Insomnia, Air Travel ect. Pls check inventory
and detailed info before placing your orders.