DOT 2 10 HEARING AID BY RESOUND SINGLE AID WITH BOX AND INSTRUCTIONS. This cost £1250 when purchased in 2010. I am not able to tell if it works as battery is missing, so am selling for spares / repair only. The cover for the battery compartment is missing, See photos. It has box but the plastic the box is made of has gone tacky and is not really useable. Full instruction book and original receipt..