Foldable Design : The headphones can be easily folded and stored in a compact space, making them convenient to carry around. Super Bass : The headphones deliver high-quality sound with deep bass, providing an immersive listening experience. Wireless Connectivity : The headphones connect wirelessly via Bluetooth 5.1, allowing users to move 0ly without any wires getting in the way. Built-in Microphone : The headphones come with a built-in microphone, allowing users to make and receive calls hands-0. Siindoo JH-919 headphones deliver High Fidelity stereo sound which results from a 40mm neodymium driver and Ear cushion design both combining to provide superior immersive HIFI sound quality and a well-closed environment for your ears to enable you lose yourself in the music. Siindoo JH-919 headphones are built from materials that are extremely nice to touch which provides the model premium outlook.The memory-protein ear cushions ensure lasting wearing comfort as they simulate human skin texture.The bluetooth headset can be adjusted to the perfect fit with the help of the durable quality stainless steel slider and soft padded headband.Take it with you on your each travel to enjoy music anywhere, anytime.The Skin-friendly memory-protein earmuffs and headbands contribute to maximum comfort regardless of long-term use. Siindoo JH-919 Built to provide a quick and stable Bluetooth connection. Just Long press power button and the headphones will be in ready to pair mode. The Wireless Headphones are compatible with all Bluetooth or 3.5mm plug cable enabled devices You can also receive calls and have hands-0 communication. Siindoo JH-919 Headphones are Rechargeable. 400mAh battery, 28 hours of music time, 2-2.5 hours Fast Charing. After 15 hours of playtime, you can switch to wired mode and enjoy your music NON-STOP. You do not need to worry about power shortage problem for the long travel. SpecificationSiindoo JH-919 Bluetooth headset Bluetooth chipset: jieli6956a Bluetooth version: V5.1 Battery:400 mAh rechargeable lithium battery Charging portType-C Speaker Driver Units:40mm,32±15% Battery life Standby time 266H Charging time:.