Three Ladies in a Sauna

Three women, two younger, and one senior citizen, were sitting naked in a sauna.
Suddenly there was a beeping sound. The young woman pressed her forearm and the beep stopped.
The others looked at her questioningly. 'That was my pager,' she said. I have a microchip under the skin of my arm.
A few minutes later, a phone rang. The second young woman lifted her palm to her ear. When she finished, she explained, 'that was my mobile phone. I have a microchip in my hand.'
The older woman felt very low -tech. Not to be out done, she decided she had to do something just as impressive. She stepped out of the sauna and went to the bathroom.
She returned with a piece of toilet paper hanging from her rear end.
The others raised their eyebrows and stared at her.
The older woman finally said.........well, will you look at that....i'm getting a fax!!