Replacement beaters that fit in a Cuisinart Smart Power Hand Mixer are the HTM-BTR-357 beaters. The DLC-650 spatula and HTM-7WSK whisk are also designed for the Smart Power mixer series.
There are four models of mixers in the Cuisinart Smart Power Hand Mixer series, all of which use the same replacement beaters. However, the replacement whisk only fits in two of the four mixers. Cuisinart's other two series of hand mixers, the Power Select and Power Advantage, use different replacement beaters.
The Cuisinart Smart Power Hand Mixers come in 3-speed, 5-speed, 7-speed or 9-speed models. The Smart Power CountUp 9-Speed Electronic Hand Mixer, the most powerful of the Smart Power mixers, features stainless steel beaters as well as a professional chef's whisk and spatula. The 220-watt mixer has a CountUp timer and an LCD display. This mixer also includes a rotating swivel cord. The 7-speed mixer contains the same attachments, cord and LED screen as the 9-speed, but lacks the CountUp timer. Both the 3-speed and 5-speed mixers have the spatula, extra long stainless steel beaters and rotating swivel cord, but lack the extra chef's whisk. However, all four models come with a limited 3-year warranty, recipe book and instruction manual.