The Havit H619BT is a portable over-ear stereo HI-FI Sound Headphone. Its enclosed cavity design improves sound insulation and makes it simple to separate extraneous noise, resulting in the ideal music enjoyment environment. This is a Multi-Functional headphone. This wireless headset featuring a micro SD slot, FM radio, and 3.5mm AUX connection may also be used as a corded headphone. The Havit H619BT headset may last up to 2-3 hours on a single charge. It can run for 10 hours on a single battery. This headphone has a rechargeable battery with a capacity of 500mAh. The Havit H619BT, with its adjustable slider and lightly cushioned headband, provides the most comfortable experience. This model has 40MM large-aperture speakers and provides a realistic real-life music experience. The Havit H619BT Wireless Headphone comes with a 01-year warranty