300m³ Bluetooth APP Aromatherapy Machine Hotel Lobby Aromatherapy Machine 160ml Essential Oil Automatic Aroma Diffuser 100‑240V Item Type: Aromatherapy Machine Weight: 1051g / 37.07oz Material: PP Essential Oil Capacity (without liquid delivery): 160ml Floor Space: 200-300m³ Installation Mode: Display, wall hanging Noise Level: 35DB Battery (shipped with built in battery): CR2032 model, 1 x lithium manganese button cell, 220mAh Control function: Button, Bluetooth APP Product Size: 220x173x72cm / 8.7x6.8x2.8in Installation Aperture: 8cm / 2.0in Function: Aromatherapy Applicable Scenes: Hotels and motels, malls, clubs, hospitals, banks, stations, showrooms, automobile 7S stores, restaurants, cinemas, bars, KTV, Internet cafes, foot massage rooms, leisure places, beauty salons, SPA spas, fitness shops, yoga stores, pet shops, clothing stores, studios, brand stores, sales departments, offices, conference rooms, home, libraries and other occasion