• Effective training with rewards: positively reinforce your dog's good behavior. • Adjustable volume control: ideal for noise-sensitive or louder dogs, with 3 adjustment levels. • Ergonomic design: easy to hold with a thumb piece and wrist strap, suitable for children and adults. • Perfect for puppies: teach tricks and basic commands with its adjustable volume. • Simple training guide: includes easy steps to encourage and reward desired behavior. • Product dimensions: 11.7 cm wide, 16.8 cm high, 3 cm long, and a weight of 0.02 kg.