Outdoor Tech OT1900 Los Cabos - Wireless Bluetooth Headphones (Grey) Wireless Bluetooth Hi-Fi sound delivered by 30mm drivers that rivals wired headphones at four times the cost Rugged, sweat proof, IPX4 design that encourages active use (think cleaning the fish tank) Built-in Mic and simple tactile controls for toggling from music to a phone call in a heartbeat Re-chargeable battery with ten hours of continuous listening or talk time Rugged yet low profile, minimal design that blends with your style rather than defining it Connectivity technology : Wired and Wireless