Samsung Galaxy Buds2 Pro - Grey (SM-R510NZAAXFA) - Connectivity: Bluetooth 5.4, Active Noise Cancellation, 360 Audio, Battery Capacity: 61mAh (Earbuds), 515mAh (Charging Case), Sensors: Accelerometer, Gyro Sensor, Hall Sensor, Proximity Sensor, Touch Sensor, VPU (Voice Pickup Unit), Number of MIC: 6 High-SNR (Signal-to-Noise Ratio)