XVI is a practical and user-friendly Octave pedal. With independent Octave-up and Octave-down adjusting knobs, so you can adjust as you like. Moreover, it features MOD effects exquisitely designed by JOYO’s engineers, compared with similar products from the rivals, XVI offers much richer tone.

Demo by Aaron J Livecchi

Official Product Video

Product Page

Review by Cillian Breathnach

Review by Jef, gearnews.com

Manual

R-13 XVI

JOYO’s F.O.H is probably the smallest BASS DI Box you’ve ever seen. This mini pedal is compact and portable.

It can be used to run your BASS signal direct into a mixer or sound card with a TRS Balanced or Unbalanced connection

With the three band EQ section you have tonal control to adjust to the venue and give the mix engineer the signal he needs.

Demo by Pitbull Audio

Review by Amazon Customers

JF-331 F.O.H.

MULTIMODE WAH is a multifunctional WAH-WAH pedal, featuring both WAH-WAH and VOLUME functions. 
With a WAHWAH sound Q value knob, ensuring the sound changes from compact, sharp to mellow, wide style. Moreover, 6 WAH-WAH frequency ranges are available, you can choose different center frequencies to get diverse tones catering to various music styles. In VOLUME Control Mode, minimum volume control knob is one of its characteristics, by adjusting this knob you can obtain volume while toeing down the pedal completely. For example, you can turn down the volume a lot according to the needs of your performance, or just attenuate half of the volume. 

Review by reddit /guitarpedals

Demo by Osiamo Music Gear

Review by Michael Behm, gearnews.de

Demo by Sam Paterson

WAH-II Multifunction Wah/Volume

R-24 RIGEL PREAMP is a high gain preamp simulation pedal that simulates the head greatly,it offers cleanand futuristic tone for metalhead guitarists. Apart from 3-band EQ, high gain and Overdrive Control,the Bright toggle switch creates much sharper tone, the FEEL toggle switchcontrols the tone’s tightness, while the MOD toggleswitch offers 3 special head tones. Its versatilitymakes it a source of inspiration to you.
KRS Ceres clone.

Review by The Gear Forum

Demo by Ninecore Neil

R-24 Rigel Preamp

The AD-2 is a preamp and D.I. Box for acoustic guitars. It has a built-in dual band EQ so you can fine-tune the low and high frequencies. It also features a treble boost to push the end when you need it. Another very helpful addition is the anti-feedback circuit, this is very useful for live performances.

Demo by  Mj Casiano