1. Not Easy To Fall Off: The Stereo External Amplifier attaches to the headphone via a 3.5mm headphone plug and secure buckle design, helping to prevent accidental disconnection 2. Replaces Original Headphones: The helmet external amplifier can replace original headphones, reducing the need for frequent insertion and removal during use 3. Easy to Use: The mini speaker is simple to install and operate. Just press the power button to start using it 4. Battery Performance: The helmet stereo loudspeakers provide approximately 4 hours of usage time after a 1.5-hour charge, offering continuous audio performance Type: Wireless Adapter Compatible Model: for PS VR2 Model Number: Stereo External Amplifier Applicable Host: for PS VR2 Battery Life: approximately 4 hours Charging Time: approximately 1.5 hours Battery Capacity: 300mAh Product Weight: 110g Color: White Material: Plastic Package Contents: 1 x Stereo External Amplifier Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the actual product. Measurement allows an error of +/- 1-3cm