4.09 x 2.91 x 1.73 inches

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【One-step Pairing】- A40 Pro wireless earbuds Built in hall switch, headphones wireless bluetooth will auto power on and connect with your last device once you open the charging case after first connection, which is faster and more convenient.
【Crystal and Clear Calls and Immersive Stereo】- A40 Pro Bluetooth earbuds have strong 12mm speakers driving units and in ear acoustic structure support, which produces a strong bass, clear mid sound, and bright treble. The unique acoustic design of the cavity room, balanced internal and external air pressure, avoid sound loss, ensure stable sound and penetrating power, even in a noisy environment can provide clear voice detection. You can enjoy your personal space whether you are indoors, outdoor, work or exercise.