Gorsun GS-778 Mobile Phone Music Headset Wired Laptop Children Headphones(Black) Tag-Door Lock Switch The noise reduction design of

The noise reduction design of this laptop cooler

Concise: Its shape is simple

Samsung and Xiaomi

47inch * 10

MOS9T: custom button + speaker + microphone + U disk + temperature and humidity sensor

Gorsun GS-778 Mobile Phone Music Headset Wired Laptop Children Headphones(Black) Tag-Door Lock Switch The noise reduction design of1. Speaker diameter: 40mm 2. Impedance: 32 ohms 3. Sensitivity: 1023db 4. Frequency response: 20 20000Hz 5. Pin type: 3. 5mm 6. Cable length: about 120 cm 7. Material: TPE headphone cable, ABS earmuffs 8. Weight: about 230g Features: 1. 40mm high fidelity bass loudspeaker unit 2. Heat sensitive protein round high frequency earmuffs 3. Environmentally friendly and non toxic surface spray paint 4. High purity oxygen free copper core wire to reduce