With the wireless EPOS GTW 270 Hybrid in-ear earphones, you have a first-class audio experience anywhere thanks to the maximum noise reduction of the closed, acoustic design - even in very noisy environments. Two microphones give your wireless earbuds exceptional sound clarity and a more realistic audio experience with every game. Connect your gaming earbuds to any earbud Bluetooth® compatible device. Play relaxed, because the IPX 5 waterproof rating protects your in-ear Sennheiser headphones from heavy sweat and even light rain. The compact design and ergonomic shape offer you a secure and comfortable in-ear fit. Play all day: The battery life is 5 hours, which can be increased by 15 hours to 20 hours with the included charger.