AUDIOJETS Ultra Comfort Bluetooth Wireless Sport Headphones with 8-Hour Battery Life, Built-in Mic, Noise Cancelling, Sweatproof Workout Design (Black) ULTRA-COMFORTABLE LIGHTWEIGHT DESIGN - Lightweight Sweat Resistant design and adjustable headband suitable for active use in the gym or when exercising. Ideal Bluetooth Headphones for an active lifestyle NEODYMIUM DYNAMIC ACOUSTIC DRIVERS - AudioJets are finely tuned and engineered with Powerful Neodymium Dynamic Drivers to deliver Massive Bass & Crisp Sound! EFFORTLESS INSTANT PAIRING - Bluetooth V2.1 + EDR CSR Technology for quick instant pairing and auto-connect remembers your device so you don't need to re-pair your device every time! PASSIVE NOISE ISOLATION - Creates a seal around your ears to keep outside noise from interfering with your source of media and sound CONTENTS - Includes 1 Black AudioJets Bluetooth Wireless Headphones, Micro-USB Charge Cord, AudioJets Instruction Manual