Tronsmart Sounfii R4 Wireless Earbuds, 12mm Drivers with Big Bass,28H Battery,4 Mics ENC Clear Call, Adaptive Noise Cancelling to Ears and...

Tronsmart Sounfii R4 Wireless Earbuds, 12mm Drivers with Big Bass,28H Battery,4 Mics ENC Clear Call, Adaptive Noise Cancelling to Ears and Environment,Smart Touch Control,Wireless Charging Brand: Tronsmart Series: Sounfii Series Part Number: 1096447 Type: Earbuds Color: Black Driver Unit: 12mm Composite Diaphragm Frequency Response: 20Hz-20KHz THD: =1%