The Sportdog WetlandHunter 425X Camo Dog training collar is designed for waterfowl hunting environments where space is limited. Its compact size and lightweight design make it an ideal choice for hunters who need a reliable e-collar without bulk. The Realtree Max-5 camouflage pattern helps the device blend in with its surroundings, reducing visibility. This system offers a range of adjustable functions to suit your training needs, including Continuous Static Stimulation, Momentary Static Stimulation, Tone, and Vibration. The remote beeper locator feature allows you to track your dog's location. Fast shipping ensures you can get started with your training sessions quickly. Rechargeable lithium-ion batteries provide up to 50-70 hours of use per charge.Key Benefits and Features: Weight: N/A Neck size range: 5" - 22" Battery life: 50-70 hours Battery type: Lithium-ion Battery charging time: 2 hours Functions: Continuous Static Stimulation, Momentary Static Stimulation, Tone, Vibration, Remote Beeper Locator