According to Regulation (EU) No 168/2013 for high-speed electric assisted bicycles (Speed Pedelecs), horns are required. AH-052 is the smallest electric disc horn in the industry with following features:

(1) Horn diameter in 53mm with artificial paint appearance that passed adhesion test, create a design with the needs of high quality and texture.
(2) The maximum current is only 0.8A~1.0A, with low power consumption but still has 100dB ± 5dB in penetrating sound for long distances.
(3) It has passed 10,000 time durability tests.
(4) Horn holder is adjustable that can be matched with various installation positions.