With 4 dynamic drivers, PTron BT Boom Dual Driver earphones offer best-in-class 3 hours of non-stop music playtime/talk-time on a single full charge. Let the music accompany wherever you go Latest Bluetooth 5.0 technology, PTron BT Boom In-ear wireless headphones offer incredible high fidelity stereo sound quality with bass and crystal clear treble Four dynamic drivers in total combining with PU+PEEK composite diaphragm design deliver the best low-frequency sound, clear vocals, and high-frequency up to 20Khz With Ergonomic lightweight design and silicone earcaps, these Bluetooth headphones are secure in your ears and rest comfortably in the ear canal to guarantee fatigue-free and tangle free comfort

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