speaker unit :10mm big speakersuper stereo sound Stereo surround subwoofer: with subwoofer composite diaphragm speaker, high-efficiency wireless transmission efficiency, richer det-ails and layers. Long battery life: 60-80 hours playing time Life-level waterproof: the earphones have all-round protection, even if you sweat, they will not harm the earphones, and it is stain-resistant and durable.
