Excellent Hi-Fi Stereo Sound Built in 40mm Neodymium driver, POLLINI TP-19 Bluetooth headphone makes you feel yourself fly in music world. We are focusing on high quality headphone R&D, and do all effort to provide the cost-effective products and premium customer support service. All Bluetooth Devices Compatible High-quality built-in microphones and Bluetooth 5.0 make you answer call hands-free without any hassle from wire cable. You can pair your BT on your phone or any BT device with POLLINI wireless bluetooth headphone. Compatible devices includes, iPhone, Android Smartphone, Tablet, Laptop, PC, iPad, MacBook and other Bluetooth enabled devices. Light weight and Ergonomic design Its weight is about 7 oz, you feel it like a cloud without any restraint, no burden no matter how long you wear it. adjustable headphone band, adaptable earmuff, headphone band arm can be folded easily to be kept in portable case Wireless and wired mode Bluetooth 5. 0 enables you to get rid of audio wire,offering the fastest Audio transmission in excellent stability. If it runs out power, you can switch to wired mode and continue your headphone enjoyment with audio cable in its case. Large Capacity Battery 800mAh large-capacity battery offers you 40 Hours Playtime, it is pretty suitable for vacation travel or business trip. No worry about running out the battery. 2.5 hours is enough to get it fully charged. Tips: Please charge it fully for the first time usage. Support Voice Control for BT Devices With Bluetooth 5.0 built in POLLINI TP 18 wireless headphone over ear, you can ask your smart phone to do some tasks for you without holding and searching on the BT device manually, like find your phone address book and make a call, it can help you save much energy and time. Tips: Please make sure that BT is paired well and the voice control assistant has be awaken up, like Siri on iPhone. Package Content 1 x Bluetooth Wireless Headphones 1 x Headphones Carrying Case 1 x 3.5mm Audio Cable 1 x USB Charging Cable 1 x User Manual 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 transmitter.