Got message about returning the heart monitor so I packaged it up in the case it came in and put it in the postage paid envelope. I put my name and return address on it and put it on my desk since it was late. The next morning the thing started beeping. I didn’t take the batteries out but I never expected it to beep. Well ok maybe it should beep to signal the battery was dead but I figured it would eventually stop. IT DIDN’T. Talked the husband into taking it to the post office and giving it to the postmaster after explaining what it was. With the thing still beeping the post office would not accept it. The husband had to open it and remove the battery and rewrap it and tape it up. And NOW the post office would accept the thing.