Is this compatible with the rockjam rj761-sk?

I don't own that keyboard but I have used this on around 5 or 6 different keyboards without issue... If there is a 1/4" sustain connection it should work... there is a polarity switch on the pedal that you may have to flip but that's a good thing. Makes it pretty much universally compatible

We bought the rockjam keyboard rj88dp and purchased the rockjam sustain pedal separate. the sustain pedal does't work. is there a button on keyboard?

I have the same type of keyboard I thought it didn’t work as well but it really does you have to know how to use it and the best thing that I can tell you is to go on YouTube and look up a video on how to use the sustain pedal because it is a technique once you learn the technique you’re good to go I hope this helps

Will this pedal fit a rock jam 561?

It did not fit the one I bought as a gift—RockJam 61-Key Electronic Keyboard Piano SuperKit with Stand, Stool, Headphones & Power Supply. Probably won't fit the 561 either, but not sure.

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RockJAM RJSP01 Professional Sustain Pedal for Digital Pianos and Electronic Keyboards with Polarity Switch

Product ID: 306051200

⚡Highly responsive, nuanced sustain control

🎹Universal compatibility with most keyboards

🦾Durable alloy steel build with anti-slip base

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Description

🎶 Sustain your sound, elevate your stage presence!

ROCK SOLID DURABILITY - Crafted from robust alloy steel and rubber grips to endure intense practice and live gigs without slipping.
EXTENDED REACH FREEDOM - Extra-long 5.6m cable lets you position your pedal exactly where you want—no more tangled setups.
SEAMLESS UNIVERSAL FIT - Works flawlessly with virtually all digital pianos and keyboards, eliminating compatibility worries.
EXPRESSIVE TOUCH RESPONSE - Captures every subtle nuance with a smooth, natural pedal feel for professional-level performance.
POLARITY SWITCH PRECISION - Easily toggle polarity to ensure perfect connection with any keyboard, so you never miss a beat.

The RockJAM RJSP01 Professional Sustain Pedal combines universal compatibility with a highly responsive, natural feel, housed in a durable alloy steel body with an anti-slip base. Its extra-long cable and polarity switch make it the go-to pedal for serious musicians seeking reliable, expressive sustain control across all digital pianos and keyboards.

Specifications

ASIN	B01C5G2UYK
Body Material	Alloy Steel
Color Name	Black
Compatible Devices	Keyboard, Digital Piano, Synthesizer
Connector Type	Midi
Country Produced In	china
Customer Reviews	4.6 4.6 out of 5 stars (6,184)
Date First Available	11 February 2017
Item Weight	399 g
Item model number	RJSP01
Material Type	Rubber
Power Source	Corded Electric
Product Dimensions	22.86 x 7.37 x 5.59 cm; 399.16 g

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208.22 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Tunisia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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Customer service was outstanding when I had questions about the product.

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