American style Bluetooth 5.1 True Wireless On Ear Earbuds with Silicone microphone 21TW05
Bluetooth 5.1 American style TWS earphone, popular among youth customers.      
Type-C charging, charging case with battery,can charge the earbuds directly.
Silicon microphone:-42±3DB
Bluetooth operating range: 10m(no barriers)
Button Function: previous/next song,play/pause, talk/ end call.
Color: Black / white / Grey / Others
Driver size: 13MM professional quality speaker Material: Injection housing+ magnet + 1C pad printing ODM brand logo
Bluetooth version chip: NY006 /5.1 (playtime:5-6 hour)
Battery: 2*30MAH rechargeable battery(charging time: 1.5H)
Charging case: 180MAH rechargeable battery, could charging for 1.5-2 times.
Accessories: 0.3M Type-C charging cable.
Packing: Color box without window,20pcs/carton.

Sample color box package

Test report： PPT / UN / PT test report