The Tik10 is unbelievably light-weight and compact and comes incorporated which has a lanyard for simple carrying. Because the producer requirements the serial quantity to supply a replacement, we extremely suggest you keep the original packing box or consider photo from the code prior to discarding it. Thank you! https://dotecotik2088642.ltfblog.com/25740180/new-step-by-step-map-for-doteco-tik20