Femme Tens pain relief machine is great for back pain before or during labour.
Each channel has its own intensity dial so that each pair of electrodes can be controlled separately.
This tens machine has a detachable hand held booster button when pressed it will give you continuous surge of power during your contractions.

The Femme Tens comes complete with 4 large pads that are dual channel and a strong belt clip.

You can get the Femme Tens pain relief machine from mothercare for £49.99