Product Name: M10 Bluetooth TWS Earbuds Package Contains: It has 1 Pair of Earbuds Material: ABS Plastic Color: Black Additional Information: New Upgraded 5.1 Chip: stable full-core upgrade, compared with the old version of Bluetooth 5.0, the transmission distance is greatly improved, the signal stability and anti-interference ability are enhanced, and the standby power consumption is reduced Weight: 100