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: – Dimensions: HWD 10 x 16 x 8cm; 0.2kg– Materials: Acrylic, Metal Hands, Acrylic– Colour: Yellow– Movement: Quartz ‘Silent-Sweep’– Power: Requires 1 x high quality branded alkaline AA battery (not included)