The TENS programs in the "Cefar Easy" effectively relieve both acute and chronic pain in the back and neck. The "Cefar Easy" can be used anywhere – at home, at work, etc.
Choose between four preset programs:

Pain Relief, Neck/Shoulder
Pain Relief, Lower Back
Massage, Neck/Shoulder
Massage Lower Back

The "Cefar Easy" runs on regular 1.5 V AA batteries, which you can buy in any store. You can also use rechargeable batteries.
"Cefar Easy":

Safe and easy to use. 
Developed and approved by physiotherapists. 
Cost-effective treatment with no side effects – no more pills! 
Can also be used for massage and muscle relaxation.

Manufacturer: "Cefar Medical", Sweden.

For electrode placement press "more", please.