Fully working but feedback volume has been previously repaired. Therefore, priced accordingly. Have a look at the photographs.
Retails at £399

Information : Reach infinity with the Black Hole Symmetry from Collision Devices. Travel to new and uncharted realms of sonic exploration, and dive straight through the black hole into endless creativity, with a pedal that gives you modulated delay and pitch shifted reverb, to a breakdown of destructive fuzz.
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Product Type
Effects Pedal
Subtype
Reverb pedal
Inputs
6.3 mm jack
Outputs
6.3 mm jack
Effect Type
Reverb, Delay, Fuzz
Included Effects
Reverb, Fuzz
Modeling Capability
No
Multi-Effect Capability
Yes
Number of Effects
3
Effects Controls
Time (modulation delay controls), Disintegrate (fuzz controls), Echo (reverb controls)
Footswitch Compatibility
Footswitchable
Extra Effects
Pitch Shifted Reverb
Tone Highlights
Reverb controls: Mix, Pitch, Radiancy, Echo, Fuzz control: Disintegrate, Modulation delay controls: Mix, Time, Feedback, Speed, Modulation
Audio Processing Highlights
Volume setting with a huge fuzz
Performance Highlights
True bypass
Color
Black
Design Highlights
Handmade in France
Dimensions
8.86 CM (height)
Weight
1.0551 kg
Finish
Black
Typical Genres
Shoegaze, Ambient, Noise
Power Source
Isolated power supply (recommended)
Voltage
9 V DC
Power Usage
250 mA
Configuration
Pedalboard