Originally supplied with models: AV17V314/V, AV20NX14, AV2134YE, AV2144LE, AV2154CE, AV2154LE, AV2154W/E, AV21C314/V, AV21CS14/H, AV21CS24, AV21CX14, AV21CX14/A, AV21CX14/S, AV21DX14, AV21DX14/G, AV21DX14/S, AV21L314/V, AV21LX14/G, AV21LX14/S, AV21V314/B, AV21V314/V, AV21V334/V, AV21V514/B, AV21V534/B, AV21VS14/H, AV21VS24, AV21VS24/A, AV21VX14, AV21W314/B, AV21W314/V, AV21WS24, AV21WX14/G, AV21WX14/S, AV21WX14/U, AV21YX14/G, AV21YX14/S, AV2553VE/SK, AV2554LE, AV25LS24, AV25V314/B, AV25V314/V, AV25V334/V, AV25V514/B, AV25VS14/H, AV25VS24, AV25VS24/A, AV2934L/ESK, AV2954W, AV29J314/B, AV29J334/V, AV29J534/B, AV29LS24, AV29LX14, AV29LX14/U, AV29V314/B, AV29V314/V, AV29V334/V, AV29V514/B, AV29V534/B, AV29VS14, AV29VS24, AV29WX14, AV29WX24

Requires batteries: 2 AA