Beeper tone adjustment

[Gimlet]

@hobby16 I believe you are probably the one to ask what is the easiest way to change the tone on the warning beeper.

As it stands all my wheels, IPS & Gotway sound exactly the same and what's more there seems to be no direction from the beeps so even if you are riding 5 or 6 metres apart you can't tell whose wheel is beeping and about to fail.

My eldest son crashed last night because he thought it was the Gotway beeping whereas it was the IPS he was riding up the hill on a low battery. No major injuries just a grazed elbow and hip. The Gotway M10 was also low so it was beeping as well but it's impossible to tell when you are riding which one is giving you a warning.