1.18 x 1.57 x 0.79 inches

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New Generation Wireless 5.3 and Extremely Fast Pairing: Powered by twin Wireless 5.3 technology, these noise cancelling wireless earbud support binaural synchronous transmission, the connection speed is increased by 100% and ensure stable connection and super-low power consumption. Just take 2 bluetooth headphones out from the charging case, and they will connect each other automatically and then only one step easily setting to pair the earbud.
Immersive Stereo Sound and HD Call: J52 Bluetooth earbud adopt 13mm graphene composite driver which have a wider soundstage, detailed trebles and well-defined bass(60%+). Bluetooth earphones with 4 mic which used CVC8.0 technology strongly eliminating external noise which pick up & amplify your vocals even in a crowded space. Wireless headphones in ear make your communication are now clearer than ever.