Fangrui Product Details 1. 4d Sound Effect, Comfortable To Wear, Sound Isolation And Noise Reduction, Head-mounted Bluetooth Headset 2. Only When There Is No Sense Of Delay In The Sound Can You Enjoy The Experience. 3. Extra Large Dual-core Dynamic Speakers, Stereo Dynamics, Eliminating Interference And Making The Air Flow More Stable, Giving You A New Experience Beyond Your Imagination. 4. Foldable Storage Makes Traveling More Convenient 5. The Left And Right Speakers Emit Sound In A Timely Manner, With Clear Layers That Put You In A Surround Environment. Description: 1. Function: Foldable, Luminous, Tf Card Insertable 2.battery: 200mah 3. Working Hours: 10h (without Lights); 6h (with Lights On) 4. Charging Time: 2h 5. Scheme: 5.3 6. Speaker Specifications: 40mm 7. Transmission Range: 10m Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Not Affect The Use Colour:retro 2 Silver Material:plastics+aluminum Alloy Package Contents: 1 Pair X Vintage Headphones 1x Type-c Charg