To prevent the user of a wireless headset ninsère inadvertently standard non-rechargeable batteries and try to load the battery compartments are equipped with 3 contacts and provided the batteries have been slightly modified. If you want to use new / other rechargeable batteries with the wireless headset, you must change too. Cut the envelope that covers the rechargeable battery on the side of the negative pole of about one centimeter and remove it. The metal body is now found on this part will allow the device to detect ACCU. Insert the rechargeable batteries changed in the battery compartment of the wireless headset and charging function.
