Can other electrical devices cause interference with Bluetooth?
Bluetooth technology employs a technique called frequency hopping to constantly change the frequency at which it sends data, reducing interference with wireless devices like wireless LAN’s,cordless landline phones. Noise Interference can occur if the Bluetooth device is used in close proximity with microwave. Check if there are any such devices in the surroundings, and if so keep the distance between the Supertooth and such devices to at least 5 – 10m. Usually any interference will only cause a slight crackling sound.