Its 3 front “action” buttons activate the beeper, stimulation, tone and/or vibration. Side buttons and an easy-to-read LCD display let you switch easily between training/beeper configurations and dogs (supports up to 3 dogs with additional dog devices).Delta Upland is rugged and water resistant (IPX7). A long-lasting, rechargeable lithium-ion battery is included for both the transmitter and dog device, and a the beeper includes a replaceable CR 123A battery.Features: 60 hours battery life per charge. 36 levels of correction. Weight: 3.7 ounces. 4 hunt sounds (including silent) and 2 point sounds (including hawk scream) Beeper remote locate feature operable in silent hunt mode Tones, vibrations, 36 levels of momentary and 18 levels of continuous stimulation 5 training modes (beeper control available on 3 modes) Built-in BarkLimiter with Advanced Bark Correction Technology