Known as silent sweep in the industry, the hands move in a constant sweeping motion rather than a stepped tick. So you won’t hear any ticking but if your hearing is particularly sensitive in a completely silent room you may hear a very quiet whirring. Features & Specifications: – Material: Acrylic, Paper, Metal Hands, Glass – Colour: Black w/ Blue Hands – Movement: Quartz – Power:?1 x AA Battery Required (Not Included) – Dimensions: LWH 8x19x20cm – Weight: 0.66kg