• Smart-press control method
• RGB color atmosphere & LED display
• About 5 Hours Battery Life
• About 180 Hours Standby Time
• 50mAh Headset Battery
• 2000mAh Charging Case Battery
• About 10m Transmission Distance
• CVC8.0 Noise Reduction Version
• Smart Press Control Method
• RGB Color Atmosphere
• Wireless 5.1 technology
• Dimension is 12 x 7.3 x 4.7cm
• Speaker size is 8mm

M28 earbuds provide Bluetooth 5.1 wireless connectivity, a 10m transmission range, and a CVC8.0 noise cancellation technology. The headset's battery capacity is 50mAh, while the charging case's battery capacity is 2000mAh.