Troubleshooting

7
wireless LAN’s and cordless landline phones. However, noise interference can occur if the
Bluetooth device is used in close proximity with a microwave. Check if there are any such
devices in the surroundings, and if so keep the distance between the Supertooth II and
such devices to at least 5 - 10m. Usually, any interference will only cause a slight crackling
sound. The frequency of Bluetooth is much higher than that of radio station bands.
7. If I cup my hand over a Bluetooth device the signal strength and quality suffers.
Why does this happen?
Bluetooth signals are radio waves and do not need line of sight to operate. But, radio waves
cannot travel through water and as the human body is made up of mostly water they cannot
travel through it. Therefore, your hand will create a barrier causing slight interference and a
loss of signal quality.