Connection Type: Bluetooth

Connectivity : Headphones with microphoneNoise isolating headphonesWireless headphonesBluetooth 5.2

Frequency : 14 – 48 000 Hz

Model : FreeBuds Pro 4

Battery Capacity : 55 mAh510 mAh (charging case)

Battery: Life6 hours 30 minutes (without ANC)4 hours 30 minutes (with noise cancelling)33 hours (with charging case)

Noise Canceling : Yes