120ml Touch Control Bluetooth Smart Scent Air Machine 200m³ Coverage for Home Hotel Spa Office Scent Diffuser 100‑240V US Plug Black Item Type: Scent Air Machine Material: Aluminum Alloy Weight: Approx. 1728g / 61oz Battery: 1 x CR2032 Lithium Manganese Button Battery (220mAh) (Included) Function: Aromatherapy Product Size: Approx. 29x11cm / 11.4x4.3in Oil Capacity: 120ml Noise Level: <38dba Atomization Amount: Adjusted to A Concentration of 95, 0.7-1ml/h Operation Modes: Intelligent Touch Control, Bluetooth Control Installation: Flat Placement Suitable: Hotels, Homes, Therapy Centers, Hot Spring Resorts, Sauna, Spa, KTV, Leisure Clubs