The 3M™ PELTOR™ EEP-100 Electronic Earplug helps protect your hearing, and can help improve situational awareness and communications in challenging environments. This kit includes a protective charging case and an assortment of eartips.The earpieces are rechargeable via a micro-USB jack on the charging case. The case also provides easy and convenient storage of the earpieces when not being used. The small and lightweight design helps improve the overall comfort and user experience, and makes it compatible with most head borne Personal Protective Equipment (PPE), such as helmets and face shields. The earpieces and case are green colored.SPECIFICATIONS:Battery life: 16hrBatterry type: Li-ionBluetooth: NoBrand: PELTORColor: GreenCommunication type: Ambient listeningFeatures: level dependent functionType: In ear earplugsLevel Dependent Function for Ambient Listening: YesNoise Attenuating Headsets: Yes