Rechargeable design. This powerful milk frother use the USB charging design. You can use the milk frother 1 month or longer after full charged.3-Speed Adjustable. The mini blender has 3-speed to adjust. Low speed operates at 4,000 rpm. You can mix nutritional supplements, protein shakes with no lumps. Medium speed operates at 8,000 rpm. You can mix egg, milk, coffee or tea. High speed operates at 13,000 rpm.With the high speed upgraded motor boasts enough power, the milk frother electric can create foamed milk in under 20 seconds,delivers double the power of other frothers and professional espresso makers available.Contact ergonomic handle, mixer electric handheld not ease of hand fatigue and more comfortable use.This milk frother handheld is a perfect foam maker.This handheld mixer has 2 Stainless steel whisks,can use as coffee frother, egg beater , handheld blender, mini mixer, egg maker,mixing protein shakes, milk, coffee, hot chocolate, and others.Battery capacity: 1200mAhtype: BColour:blackMaterial:Stainless steel+ABSPackage Contents:1x host 1x double nipple device1x egg beater1x data cableOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.