Call Bell Specifications:
Model Number: CS-O1R Waterproof Standard: IPX67 (completely waterproof); Battery: 12 V 23A built-in battery x 1 Size: Diameter 2.36 inches (60 mm), Thickness 0.82 inches (21 mm) Included: Battery, fixed double sided tape, rope Note: Our product (Seller: BYHUBYENG-JP) user messenger can be used for additional use. Not compatible with other companies!