Huawei FreeBuds Pro 4 + (FREE) Band 9

These earbuds deliver an astounding 14 Hz of booming bass, thanks to a standout dual-driver setup and 11mm quad-magnet dynamic driver unit. Hear more of what you love, with a planar diaphragm tweeter, which generates delightfully clear treble up to 48 kHz at all times. An enhanced triple-adaptive EQ algorithm guarantees a consistently high-quality listening experience by detecting the volume level, ear canal structure, and wearing status in real time and automatically performing adaptive EQ adjustment based on the equal loudness contour in ear.

Dual Driver Speaker: 11mm dynamic driver + planar diaphragm driver

Controls:
- Two Taps: Answer/end calls, play/pause music, previous/next track, wake voice assistant
- Three Taps: Previous/next track
- Slide: Adjust volume up/down
- Press and Hold: Enable/disable noise cancellation, reject calls, wake voice assistant

Connectivity:
- Bluetooth Compatibility: BT 5.2
- Pop-Up Pair: Supported (Huawei phones/tablets with EMUI 10.0 and above required)
- Simultaneous Bluetooth Connection with Dual Devices: Supported

Battery:
- Earbuds: 55 mAh (minimum each)
- Charging Case: 510 mAh (minimum)