Answers:

• Protection Care Plan runs for 12 month and will start on the purchase date. Protection plan covers almost everything including accidental damage, battery corrosion, power surge and water damage. You can find Protection Care Plan for Joy Hearing Aid
• Extended warranty works the same as the manufacturer's standard warranty that covers problems caused by manufacturing errors or defect. It starts after 1-year manufacturer warranty expires. You can find the Extended Warranty Here
• The high performance JOY hearing aids use size-10 battery. Battery would last for about 5-8 days of normal use (8-10 hours each day)