USB C Rechargeable: The new RovyVon edc flashlight E5 comes with dual power systems, one is the built-in Li-Po rechageable battery, charged via USB C charging port. The other is replaceable 3A battery, you can just pop in a 3A battery when you are outdoor, which makes the usb c flashlight rechargeable and battery replaceable. Versatile Sidelights: This edc keychain flashlight is equipped with 5 emitters. Two front 6500K Cool White emitters, can produce up to 700 lumens, super bright for your daily use. Two warm white ones at side can be used as a reading light or bedside camping lamp, and the last one is for powering the fluorescent case. All features make the small bright flashlight very helpful in your daily life.