Mono Bluetooth 4.1 Wireless Headset with Microphone for All Android & iOS Devices New Bluetooth headset with lightweight and compact portable design. Upto 8 hours of talk time, 5 hours music time & 8 days stand by time Built in HD and Sensitivity microphone Ideal for in car calling or working use. Perfect for Stealth Listening or watching at work., Stealth Listening or watching at work., Up to 4 hours of continuous talk time, 4.5 hours of music time. Supreme Sound delivers Good Bass and Clarity Compact lightweight design, Solid build quality Works with almost all devices With Stereo Compatible Microphone. Compatible with all Android, iOS and Mi devices Light yet scratch-resistant, the aluminium sound chamber is anodized for a sleek finish and features a finely engraved CD-like pattern to prevent it from slipping Delicate details like the chamfered edge feels smooth in hand and adds an elegant touch. The diaphragm uses a combination of aerospace-grade metal and PET to create a balanced and solid sound. the flat cable is smooth to the touch and is resistant to bends and tangles. Backed by extensive research, the main body is ergonomically angled to fit your ear canal for long-lasting comfort This anti-slip design also prevents it from dropping out easily. Crafted to Precision Delicate details like the chamfered edge feel smooth in hand and add an elegant touch 3rd Gen Balanced Damping Uniquely designed, the 3rd generation balanced damping system enhances sound and air flow.