Feature●MY BATTERY DIED , OH WAIT IT IS RECHARGEABLE: Replacing Batteries becomes a thing of the past, with the M5; This M5 operates for 160 hours on one single charge●Dual power adjustment: Different power settings can meet the needs of different environments. One-key conversion, simple and easy to operate.●SPECIFICATIONS: Power Boost Technology provides many times more cleaning power; Breathe 87.5 percent cleaner air. Silent operation, no noisy fans or motors; No filters to change; USB charging cable, lanyard, and travel case are includedDescription