- Bluetooth 5.0- Sensor: Accelerometer, IR, Hall, Touch- Earbuds battery: 85mAh- Earbuds size: 17.5 x 22.5 x 19.2mm, 6.3g- Cradle battery: 270mAh- Cradle size: 38.8 x 70 x 26.5mm, 39.6g