2.6 x 2.16 x 0.8 inches

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Bluetooth 5.1 Chip – Latest Bluetooth 5.1 chip set, headphones wireless realize efficient transmission, slow down the delay of binaural synchronization connection, reduce frequency interruption, reduce power consumption, and make the connection more stable.
Active Noise Cancelling Earbuds – Each wireless earbud built-in active noise cancellation mode that detect external sounds and cancel them, effectively allowing to reduce 90% of background noise from entering the ear canal, enjoy relatively smooth, balanced sound and ample bass freely.