Pro Ears Stealth Elite Bluetooth Earbuds - The Stealth Elite is a unique pair of electronic hearing protection earbuds with attachable Bluetooth lanyard. Each set of Stealth Elites come with two earbuds independently powered by your standard #10 battery, a rechargeable lanyard with Bluetooth capabilities that can connect to your earbuds to play music or talk on the phone, several sizes of foam ear tips to fit with a Noise Reduction Rating (NRR) of 28, and several sizes of silicone tips designed for staying in your ear during physical activities. State-Of-The-Art Hearing Protection 5X Amplification 80+ Hour Working Time Charging Time: 2 Hours IPX6 Waterproof Rating