Dual-Microphone Noise Cancellation during Calls: Two built-in high sensitivity microphones in each earphone with noise reduction algorithm. Microphone Form Factor with microphone. Battery Average Life 15 Hours.
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OPPO Enco W31 Bluetooth Wireless Earphones with Mic, AI-Powered Noise Reduction During Calls, Long Battery Life for Calls and Music, IP54 Dust & Water Resistant,Supports Android and iOS(Black) : : Electronics
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