We also sell on sites other than Mercari and our own website, so please refrain from immediate purchase and confirm availability via comments. Specializing in unit-type soundproof rooms, 【Tokyo Soundbox】 presents: Yamaha Avitects High Type (3.7 tatami mats / -35db) ■ Model Number AMDB37C ■ Size Outer dimensions: 2325 (ventilation +170) x 2766 x 2295mm Inner dimensions: 2207 x 2648 x 2121mm ■ Soundproofing Performance -35db ■ Condition (〜Defect Points〜) There are numerous adhesive marks on the ceiling and walls. These are marks from the adhesive used by the previous owner to attach sound-absorbing materials. We will remove them as much as possible upon delivery, but complete removal is difficult. We recommend covering the marks by attaching sound-absorbing panels with masking tape + double-sided tape, or, if you are not concerned, you can use it as is, as it will not affect the soundproofing performance. ■ Delivery and Installation ・Basic installation fee: 88,000 yen (tax included) ・Additional fees may apply for the region, stair work, air conditioner work, and piano/desk transport. ・Door/ventilation fan positions can be adjusted during installation. We will install them optimally to suit your room. ■ Soundproofing Enhancement and Renewal Support We offer specialized options such as floor vibration isolation enhancement, sound absorption enhancement, soundproofing measures for windows, ventilation, and air conditioners, and replacement of included equipment (carpets, lighting, ventilation fans) with new ones. ■ For those considering purchase and installation The optimal content and cost vary depending on the installation environment and your intended use. We recommend consulting with us first via our official website or official LINE. (Due to regulations, we cannot post the URL, so please search for "Tokyo Soundbox") 【Please inform us when contacting us】 1. Your installation location address 2. Floor level and elevator availability 3. Air conditioner work / piano/desk transport availability We provide consistent support from pre-consultation to installation, as a soundproof room specialist. Tokyo Soundbox Co., Ltd. Representative: Fumiya Sato ※Updating Instagram / note / YouTube