Hi Heather, I am deciding on whether to hire or purchase a Tens machine for labour but I have a few questions. - I read that the pads are reusable. If I intend to use it for other pregnancies in the future, will I need to change the pads or will they still be reusable? Is there a reason why there are 4 self adhesive electrodes but only 2 leads? Are 2 spares? - What batteries does it use? - Is there a showroom where I can buy/pick up or only sent by post? Thank you. Regards, Theresa Hi Theresa, There are 4 electrode pads because each lead needs two pads -one ach side of the spine at the middle and lower back. The electrodes can be used many times but it depends on how long you use them for as to how quickly they dehydrate. If you have a few years between pregnancies you may need to replace them. A new set of three will cost $25 including postage. It uses a 9V battery and each battery lasts between 20-30 hours you can use rechargeable ones if you wish. No pick ups unless you're booked in to a birthing class, massage, yoga or hypnotherpy session. See website www.naturalbirth.net.au You will need to book an appointment with me -ph: 94002709. You may also wish to call your health fund to ask about rebates on hiring VS purchasing. Hope this answers your questions. Regards, Heather. LabourTENS Forum & Blog