Usam-YH21 Wireless Headphone YH Series BT 5.3 Lenovo Backpacks Frameless design and is made

Frameless design and is made of aluminum

7 Razor Heads in 360° Floating Shaving--Perfect for Shaving Bald Head

High reliability

Data Link Protocol USB

Memory: 4 GB DDR4 SDRAM

Usam-YH21 Wireless Headphone YH Series BT 5.3 Lenovo Backpacks Frameless design and is madeUsam YH21 Wireless Headphone YH Series BT 5. 3About this product: Upgrade Bluetooth 5. 3 solution, stable and not disconnected 70 hours of ultra long music enjoyment Breathable protein leather earcaps for more comfortable wearing Immersive stereo effect, high definition microphone call Product specifications: Chip scheme: 5. 3V Transmission distance: <=10m Speaker diameter: 40mm Speaker sensitivity: 108dB 3dB 1KHz 0. 179V Impedance: 32 ohms Frequency