AV Spec, USB Powered Famicom! Great value with a 2-unit set! Simple design makes this price possible.

RF Switch, no dedicated AC adapter required. Set of 2. Great for joint purchases with friends.

Completely original electronic circuit design. It's impossible to make a simpler circuit. With Grandpa's brilliant technique, we've achieved AV and USB conversion. (Photos show two of the six types of AV/USB conversion engines developed by Grandpa. 1.8cm x 2.3cm)

Modifications
・RF Switch ⇒ AV Cable (RCA Cable = Red (White) Yellow Pin Jack = Composite Video and Red (White) Audio)
・ Reverse polarity power adapter 10V ⇒ USB charger bus power 5V (mobile battery)

Features
・ Cables are connected to the main unit, just like the controller, so you won't lose them!
・Incredibly beautiful picture! Interference image noise removal (vertical stripe noise)
　(Vertical stripes that are not noise have not been removed. Removing them would require excessive capacitor connection, which would eliminate fine patterns, such as the castle pattern in Tetris or the expression of grass and soil in the background.)
・Blocks power hum picked up from USB chargers (50Hz West Japan, 60Hz East Japan).
・No pseudo-stereo. Since the Famicom is a monaural sound source, stereo conversion is impossible. Pseudo-stereo is simply separating (randomly mixing and separating) the BGM and action sounds that were handled separately by the creators and programmers at the time, not expressing spatial spread to the left and right. It's unnatural stereoization from directions unrelated to the game character's movement or missile firing direction. We do not implement this for health reasons (motion sickness-like mood disorders, fatigue from sounds coming from directions unrelated to the engaging visuals). Please plug into either the left or right audio input of your TV.
・Ultra-simple circuit. Extremely few components reduce the probability of failure. Achieved this price through cost reduction.
・Sufficiently long cables! (AV cable: 1m 40cm, USB: 85cm or more guaranteed!)
・Inexpensive! And! Extremely reliable (please check my profile for sales history.)
・Overhauled controllers. Cleaned of hand stains, replaced cracked rubber parts.

Bonus: Includes a guide to reviving your old, worn-out ROMs (though it's just one sheet of paper!)
Other
・The photos show the early model (without FF logo). We may ship the late model (with FF logo).
・The color of the wires, etc., may differ slightly from the photos. The function is the same.
・Game cartridge ROM connector refresh
・Repainted yellowed casing