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OnePlus Buds 4 Earbuds voucher DIY natural wind/Type-C universal interface/100Tuned Two Perfection Typically only found in premium earbuds, we've doubled down with dual drivers packing an 11mm woofer and 6mm tweeter. With two DACs ready to tango, one for each driver, dial in to meticulous high and low frequencies. Enjoy front row seats to a soundstage filled with balanced, true to life acoustics. Silence Made Smarter Escape into an oasis of smarter silence with two algorithm powered modes. Significantly upgraded from OnePlus