Joyo Jam Buddy II Gray Modellering Combo

Portable Guitar Amp with Multi-Effects, Bluetooth, and USB-C Recording

The JOYO Jam Buddy II is a battery-powered multi-effect modeling amplifier that combines a 16 W stereo speaker rig, 14 amp head models, 36 drum patterns, a 30-second looper, Bluetooth audio, and USB-C OTG recording in one 940 g unit. Guitarists wanting a single device for bedroom practice, lessons, and songwriting will find this model a complete grab-and-go rig. Three footswitchable channels (Clean, Rhythm, Lead) let players switch tones hands-free, while the integrated drum machine and looper turn the unit into a self-contained practice partner. Bluetooth streaming and the USB-C OTG audio interface add modern connectivity for jamming along to backing tracks.

What Sets This Amp Apart in the Mini Practice Category

Inside the 161 x 182 x 70 mm enclosure sit two 2" full-range 8 W speakers paired with a 76 x 46 mm rectangular passive bass radiator. The unit also includes a built-in metal smartphone/tablet holder, a press-and-turn multi-function knob with LED display, and a USB-C OTG audio interface that turns the amp into a class-compliant sound card for phones and computers.

Speaker System and Amp Models — Practice Anywhere

The stereo speaker configuration delivers a balanced frequency response for both guitar tones and Bluetooth playback, while the dedicated headphone output lets players switch to silent practice.

• Power Rating: 16 W — total output from two 8 W full-range drivers
• Speakers: 2 x 2" (40 mm) full-range, 4 Ω / 8 W each — plus a 76 x 46 mm passive bass radiator
• Amp Head Models: 14 — covering clean, overdrive, and high-gain voicings (Blackface, JCM800, Dual Rectifier, 5150 EL34/6L6)
• Channels: 3 (Clean, Rhythm, Lead) — each with storable presets and footswitchable access

Effects, EQ, Drum Machine, and Looper — Tone Shaping Toolkit

Beyond the amp models, this unit ships with a 3-band EQ, a dedicated gain knob, and nine built-in effects grouped under Mod, Delay, and Reverb categories.

• EQ: 3-band (Bass, Mid, Treble) plus a dedicated Gain control for shaping each channel
• Effects: 9 total — Flanger, Phaser, Tremolo, Chorus, Vibrato, Analog Delay, Digital Delay, Hall Reverb, Church Reverb
• Drum Patterns: 36 — built-in drum machine with adjustable tempo and volume
• Looper: up to 30 seconds — record, overdub, and clear short riffs via the two footswitches

Inputs, Outputs, and Battery — Modern Connectivity

The amp accepts a standard 6.3 mm TS guitar input and offers multiple output paths for stage, studio, and silent practice. A rechargeable lithium battery delivers roughly 5 hours of playtime.

• Guitar Input: 6.3 mm TS jack — standard electric guitar connection
• Headphone Output: 3.5 mm stereo jack — silent practice with 52 mW driving power into 32 Ω
• Line In/Out: 3.5 mm stereo — plus a 6.3 mm mono output for mixer or PA connection
• USB-C OTG: audio interface to phone or computer — plus USB-C charging (3 h to full)
• Bluetooth: wireless audio streaming — for backing tracks with a dedicated Music Volume knob
• Battery: 2200 mAh / 7.4 V lithium, approx. 5 h playtime — auto power-off after 20 minutes of inactivity

Who Should Pick Up This Amp

This unit is the right choice for electric guitarists who want a single portable rig for home practice, lessons, songwriting, and travel without hauling a full amp and pedalboard. Bedroom players benefit from the headphone output, while gigging guitarists can use the line out to feed a PA for small shows. Songwriters get a built-in drum machine, looper, and USB-C OTG recording to capture ideas on the go, and teachers can hand students a rig that covers tone, rhythm, and recording in one box.

JOYO — Digital Products for Music Education

JOYO Technology is a professional company specializing in the R&D, manufacturing, and marketing of digital products for music education. This model builds on the original Jam Buddy concept — a pedal-sized amp with built-in effects — and adds a USB-C OTG audio interface, Bluetooth streaming, 14 amp models, and a 30-second looper in a redesigned enclosure. The unit ships with a metal smartphone/tablet holder, a USB-C to USB-C cable, and an owner's manual.