Banana Bros. is a cannabis-accessory company built around OTTO, a rechargeable device that mills dry herb and fills a paper cone with it in one motion. The company was founded in 2017 by chief executive Dave Richmond and director of innovation Manny Montano, and the house line is "make it easy, to take it easy." It sells hardware, not cannabis.
How OTTO works
Herb goes into the milling chamber at the top and a paper cone sits in the O-Tube below, held by a magnet. A smart milling system senses the resistance against the milling blades and adjusts as it goes, which is how the device handles material that arrives wet, dry or sticky and still produces an even grind. The milled herb drops straight into the cone and the cycle takes seconds. OTTO accepts standard King and Shorty cones.
What comes in the box
The OG OTTO ships with the device, an O-Tube X, a cone starter pack, a user manual and quick start guide, and an accessory box holding a measuring cup, adapter base, Fresh Seal Tube, 4-in-1 tool, Snap Cap, Shorty adapter base and a Micro-USB charging cord. It lists at $89.95. Banana Bros. also sells OTTO GO, a portable version of the same mechanism, and stocks replacement parts for both.
Patents
Banana Bros., LLC marks its products under U.S. Patent No. 9,427,020 and U.S. Patent No. 9,814,259 on the company's virtual patent marking page.
Where it operates
OTTO, OTTO GO and their replacement parts are sold through the official store. Customer service runs at customerservice@bananabros.com, Monday to Friday, 8am to 5pm Pacific.
OTTO is a preparation tool, not a vaporizer and not a cannabis product. Its motorized milling chamber adjusts direction, speed and pressure in response to resistance, then drops the processed herb into a supported cone. The user still chooses the material, cone size and final pack. Moisture, stem content, cleaning and charge level can affect the result, so the care instructions matter as much as the automatic cycle.
The company sells its hardware and replacement parts online and provides customer service by email. Pricing, package contents and availability can change, so the live product page controls over an older review or unboxing. Consumers should check the manual, warranty, cone compatibility and included accessories for the exact version before purchase.
OTTO, OTTO GO and parts
The main store separates the original OTTO from the more portable OTTO GO and sells cones, O-Tubes, adapters, tools and replacement components. Accessories are model-specific in some cases. Buyers replacing a part should match the product generation and item description instead of assuming that every O-Tube or charging component fits both devices.
Product details
Banana Bros. updated its direct-purchase warranty on November 16, 2025. Eligible products bought from bananabros.com carry a one-year limited warranty for manufacturing defects. The policy excludes misuse, drops, water damage, normal wear, commercial use and failures tied to ignored maintenance instructions. Amazon purchases are handled through Amazon rather than the direct-site process.
Brand focus
From Culver City, CA, Banana Bros. focuses on cannabis accessories, electric grinder and cone filler rather than cultivating or selling cannabis itself. cannabis accessories is the main product or service lane, with electric grinder and cone filler extending the offer around it.