Wonderful new addition to our didj range. It's so good that we had to bend our own rules about not using plastics (this is made from PVC) to include it. The Slide Dij is an amazing innovation – it’s not only wonderfully light and compact, telescoping down from 1.5m to just 93cm in length and weighing 1kg, it also lets you add a new slide trombone dimension to your playing as you can change the length of the tube and therefore the pitch whilst playing. Brilliant!

The didgeridoo is played with continuously vibrating lips to produce the drone while using a special breathing technique called circular breathing. This requires breathing in through the nose whilst simultaneously expelling stored air out of the mouth using the tongue and cheeks. By use of this technique, a skilled player can replenish the air in their lungs, and with practice can sustain a note for as long as desired.

A 2005 study in the British Medical Journal found that learning and practicing the didgeridoo helped reduce snoring and sleep apnea by strengthening muscles in the upper airway, thus reducing their tendency to collapse during sleep. This strengthening occurs after the player has mastered the circular breathing technique.

The didgeridoo (also known as a didjeridu or didge) is a wind instrument developed by Indigenous Australian of northern Australia at least 1,500 years ago and is still in widespread usage today both in Australia and around the world. It is sometimes described as a natural wooden trumpet or "drone pipe". Musicologists classify it as a brass aerophone. There are no reliable sources stating the didgeridoo's exact age. Archaeological studies of rock art in Northern Australia suggest that the people of the Kakadu region of the Northern Territory have been using the didgeridoo for at least 1,500 years, based on the dating of paintings on cave walls and shelters from this period. A clear rock painting in Ginga Wardelirrhmeng, on the northern edge of the Arnhem Land plateau, from the freshwater period shows a didgeridoo player and two songmen participating in an Ubarr Ceremony.

Authentic Aboriginal didgeridoos are produced in traditionally oriented communities in Northern Australia or by makers who travel to Central and Northern Australia to collect the raw materials. They are usually made from hardwoods, especially the various eucalyptus species that are endemic to the region. Sometimes a native bamboo, such as Bambusa arnhemica, or pandanus is used. Generally the main trunk of the tree is harvested, though a substantial branch may be used instead. Aboriginal didgeridoo craftsmen place branches and trunks of specific woods in an active termite area. The termites prefer soft wood and naturally hollow the wood out, it is then collected by the craftsmen. If the hollow is too big or too small, it will make a poor quality instrument.

Once the naturally hollowed out wood is retrieved, the bark is taken off, the ends trimmed, and the exterior is shaped; this results in a finished instrument. This instrument may be painted or left undecorated. A rim of beeswax may be applied to the mouthpiece end. Traditional instruments made by Aboriginal craftsmen in Arnhem Land are sometimes fitted with a 'sugarbag' mouthpiece. This black beeswax comes from wild bees and has a distinctive aroma.

Non-traditional didgeridoos can also be made from PVC piping, non-native hard woods (typically split, hollowed and rejoined), glass, fiberglass, metal, agave, clay, hemp (a bioplastic named zelfo), and even carbon fibre.