T&G TG166 Color Portable Wireless Bluetooth Small Speaker(Black) Filter-Other Earphone Case Product size: about 30x34mm

Product size: about 30x34mm

Widely used for microwave and millimeter wave products

Erase prevention switch

Soft ear cups and self-adjusting leather-padded headband

5-inch notebook

T&G TG166 Color Portable Wireless Bluetooth Small Speaker(Black) Filter-Other Earphone Case Product size: about 30x34mm1. Material: Plastic 2. Interface type: USB 3. Battery capacity: 500 mAh 4. Frequency response range: 100HZ 20KHZ 5. Output power: 5 w 6. Signal to noise ratio: greater than or equal to 75 dB 7. Power supply: USB charging built in lithium battery 8. Channel: 2. 1 9. Playing time: 1. 5 hours 10. Bluetooth protocol: 4. 1 11. Number of speakers: 1 12. Effective distance: 10 meters 13. Function: card radio call function 14. Play format: MP3 15. Connection