Image Item No. Description  9693-1 (Inv)  Rechargeable Battery for Lego Mindstorms NXT, DC plug 1 Part, 2010 Catalog: Sets: MINDSTORMS: NXT  9694-1 (Inv)  NXT Color Sensor 1 Part, 2010 Catalog: Sets: MINDSTORMS: NXT  D100340-1 (Inv)  LogIT Sensor Adapter 1 Part, 2010 Catalog: Sets: MINDSTORMS: NXT  MS1032-1 (Inv)  Infrared Receiver Sensor for Mindstorms NXT 1 Part, 2010 Catalog: Sets: MINDSTORMS: NXT  MS1035-1 (Inv)  Magnetic Sensor for Mindstorms NXT 1 Part, 2010 Catalog: Sets: MINDSTORMS: NXT