Flashlight-sized call w/ built-in, forward facing speaker. Interchangeable Sound Sticks, each Sound Stick holds 5 sounds. Up to 110db volume. Plays 2 sounds simultaneously & overlaps the same sound. 2 minute distress sounds. Mute button. External speaker/headphone jack. Molded non-slip grips. 3 AAA Baterry operation. On/Off /Volume Control. Auto shut-off after 2 min. at idle. On/Off LED light. Lanyard ring. Combo: 1 call w/ 2 Sound Sticks.