Turtle Beach Ear Force Z11 Amplified Gaming Headset for PC and Mobile Devices. The Z11 is now in Red and is the perfect headset for PC gamers seeking high-fidelity audio and superior comfort at an affordable price. Its acoustically angled 50mm speakers deliver extended bass with extraordinary dynamic range for optimum audio performance. With a fully adjustable lightweight headband and breathable mesh ear cushions the Z11 is designed for extreme comfort during long gaming sessions. The Z11 also includes a PC/laptop adapter cable while its 3.5mm 4-pole connector provides easy compatibility with smart phones tablets digital music players and other mobile devices.