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One charger was manufactured about 1 (mm) to large where it connects to headphones and nearly damaged the headphone charging port on my brand new Bose headphones. Be very careful with this manufacturer. Make sure you compare the size of the replacement charger tips to the stock Bose charging tip before inserting into headphone, should be identical size and shape.
The charger worked great for a bit, but within a handful of charges the wires began to strip and become exposed. I would charge them all night and wake up to a full charge, within 30 min I would be alerted that they needed to be charged now. So it doesn’t hold a charge. When I use the original charger the Bose came with, I have no issues.