Roland MICRO CUBE BASS RX bass amplifier, used item including the main unit and strap. It shows signs of use, but there are no noticeable scratches or fatal damage. Although not original, I will include an AC adapter (9v 2.2A) if needed. Working condition: External input, headphone jack OK. Foot switch not used, so operation unconfirmed. Please download the instruction manual from the manufacturer's website: https://www.roland.com/jp/support/by_product/micro_cube_bass_rx/owners_manuals/8fc94277-bb2b-4234-af80-9628c2636ee0/ Main Features: ・Up to 11 hours of continuous use with 6 alkaline AA batteries. ・Stereo configuration with 4 custom speakers for class-defying response. ・COSM amp and digital effects allow for a wide variety of sound creation. ・Independent bass-specific compressor. ・Supports a wide range of uses, such as rhythm guide and tuner. Dimensions: Width: 296mm, Depth: 207mm, Height: 294mm, Weight: 6.8kg Equipped with COSM amp + digital effects + EQ. Also equipped with a rhythm machine, making it a comprehensive amplifier. This is a used item, so please understand. Please refrain from price negotiations. If paying at a convenience store/ATM, please inform me of the expected payment date after purchase.