Kemei KM-1741Rechargeable cordless hair trimmer, powered by a 1200 mAh lithium batteryRuntime advertised at ~ 90–120 minutes per full chargeUses DLC-coated + ceramic blades for durability and sharpnessHigh-speed motor (around 7,500 RPM in listings)Designed for precision trimming / detailing, possibly with “zero gap” capabilityMetal body in some models; includes adjustable guards and accessories.