1、Sound and visual alerts will enable you not to miss a bite and makes your fishing easier. (NOTE: This fishing bite alarm is without receive function.) 2、16 LED lights has drop or back alarming and indicate the volume control,suitable for night fishing in weak light circumstances. 3、The bite alarm will send out warning beeps when the rod leaves. 4、Adjustable sensitivity,volume,tone and LED bright. 5、High visibility LED latching about 40 seconds. 6、LED alarming signals with high output speaker. 7、Fixed bolt with adjustable screw and extra plug for illuminated swinger. 8、Powered by a 9v battery(not included). Fishing bite alarm has sound and light alarm while fish bites,will enable you not to miss a bite and makes your fishing easier. Features: Sound and visual alerts will enable you not to miss a bite and makes your fishing easier. (NOTE: This fishing bite alarm is without receive function.) 16 LED lights has drop or back alarming and indicate the volume control,suitable for night fishing in weak light circumstances. The bite alarm will send out warning beeps when the rod leaves. Adjustable sensitivity,volume,tone and LED bright. High visibility LED latching about 40 seconds. LED alarming signals with high output speaker. Fixed bolt with adjustable screw and extra plug for illuminated swinger. Powered by a 9v battery(not included). Specification: Model: JY-17-2 / JY-17-3 / JY-17-4 /  JY-17-6 / JY-16 Red / JY-16 Pink / JY-16 Green / JY-16 Yellow / JY-16 Blue / JY-16 White (Optional) Material: ABS & Copper Size: 11.5*5*4cm/4.5*1.9*1.5in Weight: Approx. 70.8g/2.5oz Battery: 1 * 9V Battery(not included) Package size: 12*5.5*5cm/4.7*2.2*2.0in Package weight: Approx. 86.4g/3.0oz Package List: 1* Fishing Bite Alarm 1* Fishing Bite Alarm