LEGO MindStorms NXT 1.0 Retail Kit

If your Kit has this type of light sensor:-

Lego Light Sensor Retail NXT 1.0 Mindstorms kit

and does not have either of these sorts of batteries:-

Rechargeable Battery Pack Lego Mindstorms Education Kit Lego NXT White rechargeable battery

you have an NXT 1.0 Retail MindStorms Kit. Congratulations! - You can use all of the Challenges in this series that have Challenges numbers less than 100. Have fun!