PureGear PureBoom Bluetooth Wireless Headphones - Black (63574PG) Model_SM-A115U Built-in rechargeable lithium ion battery:

Built-in rechargeable lithium ion battery: battery life ~5 hours at 50% volume and ~2 hours at 100% volume

based on your hearing loss profile

Colorful Design: Comes in vibrant Neon Blue and Red

The Marine Series Waterproof Case for Apple iPhone 8 Plus and iPhone 7 Plus Smartphones

000mAh rechargeable Li-ion battery supports up to 20 hours of playtime and charges smartphones and tablets via USB

PureGear PureBoom Bluetooth Wireless Headphones - Black (63574PG) Model_SM-A115U Built-in rechargeable lithium ion battery:The PureGear PureBoom Bluetooth Wireless Headphones. Black version. Model: (63574PG) Features: Wide Compatibility: Pair easily with Bluetooth Devices Including laptops PCs, tablets, smart TVs, gaming consoles, smart Watches, all Devices with latest iOS and Android devices High Fidelity sound with large 40mm driver provides deep bass with clear highs. Passive noise isolation keeps the noise out while keeping your music loud and crisp. Up to 4 hours