Hard TPU exterior with a soft-touch silicone interior case that protects your AirPods (1st Gen & 2nd Gen) against bumps, drops, and scratches without adding bulk - On-the-go functionality featuring a detachable carabiner making it easy to clip your AirPods onto your favorite backpack, bag or belt - Quick-release spring-assisted automatic release button allows easy access to your AirPods - Meets military-grade standards (MIL-STD 810G-516.6) and a lightning port plug to protect your AirPods from dust and water intrusion - Compatible with wireless charging for AirPods (2nd Gen) with visible charging LED light.