Product Description: 1. Support overcharge protection, overdischarge protection, overcurrent protection, short circuit protection 2. Ergonomic comfort: Ergonomic design and breathable materials make wearing comfortable. PU leather and foam pad are very soft and fit 3. Outline your head to make play time more comfortable 3. For different types of headwear: the headband can be adjusted flexibly according to the position of individual wearing, the adjustment wheel at the back can easily adjust the tightness, and the height of the headset can be quickly rotated 4. Balance pressure: head cushion effectively reduces and balances gravity pressure. It helps balance the weight of the VR headset and makes you feel more comfortable. 5. High quality material: The headband is made of high quality PU leather and foam pad to ensure a clean surface and soft connection is always maintained. Easy to install and remove. 6. Specially made for Oculus Quest 2 VR headsets, flexible support frame can support your head for longer. Specifications: Air volume: 0.9 to 1.1 CFM Gear mode: 2 gears adjustable Charging interface: Type-C, DC 5.0V???0.3V/200mA Battery: Lithium polymer battery, 3.7V/300mAh Charging time: less than or equal to 2.5 hours Standby time: 0: about 120 days Endurance time: first gear: about 4.5 hours; Battery life: second gear: about 3.5 hours Charging: red light on when charging, red light off when full Operation: White light on during operation Blocking protection: blocking automatically shuts down and starts automatically after 1 second Glasses bracket: Supported The package includes: 1 x air circulation fan 1 x flexible facial interface 1 x anti-leakage nose pad 1 x PU leather foam 1 x charging cable 1 x wipe glasses cloth