Item Type: Fishing Bite Alarm Material: Engineering Plastics + Stainless Steel Model: 1264 Quantity: 1Pc Battery Type: 1 x 6F22 Type 9V Dry Battery (Battery Not Included) Product Color: Black LED: 2Pcs of Red and Green LEDs Waterproof Rating: Not Waterproof Product Size: Approx. 11.8cm/4.6in 1The sound and light alarm device has five levels of volume control buttons and five set tones control buttons. 2Compatible with conventional signal receiving rocker, the speaker brings clear sound, and the on/off rotate switch. 3Made of sturdy and durable plastic, it is lightweight and can be used in different types of fishing rod holders in different terrain and time. 4The LED warning light is an ideal indicator for night fishing, using 2pcs 2mm diameter high visible light green and red LEDs. 5The fishing alarm makes you never left any place, makes fishing easier, energy?saving, portable and easy to install.1. Please allow 1?2 cm error due to manual measurement. Thanks for your understanding. 2. They are all national standard universal screw interfaces, suitable for all standard European?style fishing rod holders. 1 x Fishing Bite Alarm (Battery Not Included)