1、Bite Alarm: 2、Adjustable tone, volume and sensitivity to meet your needs. 3、Audio and visual alerts will enable you not to miss a bite and makes your fishing easier. LED alarming fishing bite alarms and chain alert swingers set is great for night fishing and in weak light environment,which you do not worry about missing the hooked fishes and the rod. Features: Bite Alarm: Adjustable tone, volume and sensitivity to meet your needs. Audio and visual alerts will enable you not to miss a bite and makes your fishing easier. Suitable for day and night time fishing. Power by a 9V battery (not included). Chain Alert Swinger: Metal head is for line tension to improve hooked sensitivity. Unscrew the head to put your glow stick(not included) as an indicator to find the fishing rod during night fishing. Easily connect to fishing alarms for easy fishing experience. Specification: Bag size：24 * 17 * 6 cm / 9.4 * 6.7 * 2.4 in Package size: 28 * 19 * 7 cm / 11.0 * 7.5 * 2.8 in Package weight: approx. 575 g / 20.3 oz Bite Alarms: Shell color: Black / Camouflage (optional) Material: ABS + Iron Battery: 1* 9V battery(not included) LED Color: Blue Size: 9 * 5 * 4 cm / 3.54 * 1.97 * 1.57 in Chain Alert Swingers: (Without Illuminated Function) Shell color: Red / Blue / Green (optional) Material: Metal + Plastic Total length: 33 cm / 13.0 in Chain length: 23.5 cm / 9.3 in Unit weight: approx. 13.9 g / 0.5 oz Package List: 3* Bite Alarm 3* Swinger 1* Storage Bag 1* Instruction 3* Bite Alarm 3* Swinger 1* Storage Bag 1* Instruction