features: adopt high-performance bt 5.0 chip, low power consumption, low latency, to ensure stable signal connection. 6d 10mm stereo speaker unit, to achieve more shocking audio stereo surround sound. ipx5 waterproof level, no need to worry about headphone damaging by sweating. soft tpe material, skin friendly and comfortable. ergonomic design, fit the ear canal, firm and comfortable wear, not easy to fall. intelligent wire control, realizes multi-function control of music playback, call, etc. magnetic suction design, removes tedious storage steps, not easy to wind and lose. built-in large capacity battery to ensure long time use, 8 hours play time, 120 hours standby time, no need to worry about power shortage. specification: brand: lenovo model: he05 pro color: black/red(optional) bt version: v5.0 effective distance: about 10m(barrier-free) speaker diameter: 10mm frequency range: 20-20khz battery capacity: 80mah play time: 8h standby time: 120h package size: 22 * 16.5 * 3.1cm /8.66 * 6.5 * 1.22in(l * w * h) package weight: 88g /3.1oz packing list: 1 * he05 pro earphone 1 * charging cable 2 * pair of earplugs 1 * user manual