Features: 1) Voice duration: 10 seconds (TE7601) or 20 seconds (TE7602) 2) Recording and playback voice message 3) Voice retention: 50 years 4) Playing up to 500 times 5) Dimension: 1 3/4" diameter x 3/4" high ( D 45 x H 19mm) Inner packing: 1pc/polyBag, 200pcs/inner box Dimensions: 500 x 200 x 100mm Outer packing: 400pcs/ctn Carton dimensions: 510 x 210 x 220mm