Anyone interested in an ultrasonic knife?

Looks like a cross between a Sonicare toothbrush and an old electric carving knife sort of. Pretty interesting, but not at the asking price, at least for me

Phrozen Madworks Sonic Saber Ultrasonic Knife Cutter

Experimenting with Turning an Ultrasonic Cleaner into an Ultrasonic Knife - Make

Ultrasonic Cutter —- Wondercutter S - Everything Else - Glowforge Owners Forum

★ Vibration frequency 40 KHz. Maximum output power 100W.Input power supply 220V, .Shape size, chassis: 155W * 265L * 170H mm, Handle: 32*170mm.

GLTL Ultrasonic Cutter Knife Ultrasonic Multifunctional Hand-held Cutter 40 kHz 100W (220V) With 25PCS blads

Express ZO 91 Ultrasonic Cutter White Echo Tech HONDA AC 100 - 240 V

Applied Sciences, Free Full-Text

The world's smallest portable ultrasonic cutter

HONDA - Ultrasonic Cutter (ZO-41Ⅱ) Handling & Cutting Tools Melaka, Malaysia, Ayer Keroh Supplier, Suppliers, Supply, Supplies

369Sonic brings ultrasonic cutting tech to kitchen knives

Cut ABS with Ultrasonic cutter ZO-91 - Echo Tech Co., Ltd.

Wholesale Ultrasonic Knife For a Better, Easy & Fast Clean

BAOSHISHAN Ultrasonic Cutting Knife Machine 19-26KHZ Laboratory Industrial Ultrasound Plastic Cutter 600W for ABS PE PVC PC PP Acrylic (Titanium Alloy Cutting Knife)