Brand: PRODEC Frame Material: 5mm Die-casting Aluminum Profile Wall & Ceiling Material: 38mm double-layer acoustic aluminum honeycomb module + 2mm high polymer damping sound insulation material Front and Back Side Wall: 10mm Tempered Glass Internal Wall Surface: 12mm PET panel with fire retardant and environmental protection. Sound Insulation Parameters: RW+Ctr30dB(±5dB) and RT0.25(±0.1s) Power Supply: 100-240V/50-60HZ power supply system Air Circulation System: Ultra thin + ultra quiet fresh air exhaust fan + PD long path sound insulation air circulation pipeline Ventilating Fan Current: 1.2A, power: 15W, size: 250 * 250 * 30MM (ultra thin), speed: 1500 /rpm Air volume: 121cfm, the air in the booth can be circulated in 2 minutes. Fan noise: 35db-a Lighting(Standard): 4500k flat panel light Socket (Standard): Universal standard socket * 1, two-position switch * 1 Lock (Standard): Silent type of door handle and lock Door: Tempered Glass Single Door Patent: Provide national appearance patent Standard: -Comply with national environmental protection standards -GB 50325-2020《Standard forindoor environmental pollution control of civil building engineering》