Brand: POLLINIColor : Black-RedType : Bluetooth Headphones Over EarEffective Range : 10 meters(33ft)Battery Capacity : 800mAhTalking Time : 36hMusic Playing Time : 30hCharging Time : 2.5 hoursCompatible with : iPhone, Android smart phone, iPad, MacBook, Tablet, Laptop, PC and other Bluetooth enabled device. Features1.Wake up Siri/ Google Assistant (In the Bluetooth mode)Long press the Multi-function button for about 3-5 seconds when your Bluetooth headset paired up with your cell phone, you can activate the voice assistants like Siri or Google Assistant2.Ergonomic and comfortable The over ear headphones are ergonomically designed with memory-protein earmuffs that simulate human skin texture to provide lasting wearing comfort all day.3.Adjustable headbandHeadband can be adjusted to the optimal length to fit everyone's head size for a comfortable wear from another aspect.4.Foldable design & bonus of headphone caseThe headphones can be folded in half to save the storage space. A free headphone case is also provided to protect the headphones when not in use or to carry them conveniently during travels. Package Content1 x Bluetooth Wireless Headphones1 x Headphones Carrying Case1 x 3.5mm Audio Cable1 x USB Charging Cable1 x User Manual1 x Warranty Card Note:For first time of use, charge the headset in advance.The built-in microphone only functions in the wireless mode.The headphones are compatible with Bluetooth enabled TV or laptop. Or you need a separate Bluetooth adapter for those without built-in Bluetooth receiver.