Bluetooth 5.1–5.3 Connectivity The M19 uses advanced Bluetooth 5.1 (or 5.3 in some listings) for stable, low-latency transmission up to ~10 m, with fast auto-pairing and cross-device compatibility
Battery & Charging Case Each earbud packs a 50 mAh battery (≈3–5 hours playtime); the case houses a hefty 2000–3500 mAh cell—enabling an additional ~20–25 hours of playback
Waterproof Design (IPX7) Certified IPX7 water resistance ensures the earbuds survive workouts and light rain without worry
Touch Controls & LED Display Equipped with touch-sensitive panels for playback, calls, and voice assistant commands, plus an LED screen on the case displaying battery level
