Bluetooth 5.0 Paring: Featuring super fast and stable connection (33ft/10m), less power consumption, zero latency, HSPRO wireless earbuds offer smooth and clear hands-free call and music play. Ergonomic design and High Fidelity Sound Quality: Super lightweight, one earbud only weighs 4g/0.14oz, HSPRO wireless earbuds are ergonomically designed based on ear geometry to ensure a secure, comfortable fit for any ears. 13mm large diaphragm unit delivers rich bass, accurate mid-range and detailed, clear highs, retaining every single bit of detail from the original recording. 24Hrs Playtime: 1.5Hrs full charge provides 4Hrs playtime, a fully charged (2H) charging case can recharge the earbuds 5 times, plus the charging process to the charging case and earbuds, HSPRO earbuds can provide 24Hrs playtime. 120Hrs standby time guarantees HSPRO wireless earbuds be your journey partner. One-step Paring/Charge & Auto Power On/Off: Earbuds can work together or independently as you want. Open the charging case, earbuds auto power on and connect with each other; take out earbuds, earbuds enter paring mode. Put earbuds back into the charging case and close charging case, wireless earbuds auto power off, and charging starts