The alarm device is designed for preventing exhibits or counter samples such as smart watches /smart brands/necklaces from stealing. The alarm sounds while breaking the cable connection or the removing host and sensor. Parameters Item NO.: FC158F Alarm System Working Voltage: 3V Working Current: 2-3µA Bi Tone Output: 90±5 dB Stand-by Current: 1.0uA Cord Length: 50cm Tensile Cord Length: 150cm Wire Diameter: 0.2cm Color: Black /White Material: ABS Host Size: 4cm*1.5cm*1.5cm Accepted Delivery Terms: FOB Accepted Payment Currency: USD Accepted Payment Terms: T/T, L/C, PayPal, Western Union, Escrow Near Port: Shenzhen