Portable Soundproof Testing Box for Home Appliance Noise Measurement

Portable Soundproof Testing Box for Home Appliance Noise Measurement. Ultra-Low Background Noise: Achieves background noise floor as low as 25-30dB for precise testing. High Sound Insulation: Provides 40dB reduction for single door and 45dB for double door models. Customizable Design: Supports custom observation windows, mobile stands, and specific colors. Durable Construction: Features galvanized steel outer shell with high-elasticity sealing strips. Multi-Layer Structure: Combines soundproofing, sound-absorbing layers, and egg-crate foam. Versatile Applications: Ideal for testing speakers, motors, home appliances, and automotive parts. Flexible Sizing: Available in four standard sizes ranging from 0.8m to 1.5m. Comprehensive Warranty: Includes 1-year warranty covering mechanical defects and parts.