Jellyfish Lamp USB Jellyfish Mood Lamp – Hypnotic LED Light for Relaxation & Sleep

Interface type: USB
Battery capacity: 1200MA
Power supply mode: Built-in lithium battery
Shell material: plastic
Output power: 3.7V
Effective distance: 10 meters 

Size: Large size, 14.3*14.3*39.9cm with box package, 875g