No Stuffing Crinkle Dog Toys for Puppy Teething, Interactive Dog Product details: Ergonomic design: The distance between the mouth and microphone can be adjusted according to your needs. It fits your ear perfectly, so it's stable and won't fall off. voice amplification: Amplify your voice and hold it in your throat. Excellent under feedback. With a special acoustic microphone, the sound is clearer and softer. Lightweight and easy to use: Lightweight and portable design, of charge. The clamp on the back can be used to secure the belt or pocket. The lightweight design will make you. Multipurpose speaker: Portable voice amplifier with belt that holds the rear clip in the belt or pocket. Support 3.5 mm audio assisted input. Voice, no distortion, good amplification effect. Usage scenario: This megaphone prevents you from screaming or screaming. Suitable for classroom, , promotion, outdoor and other places. Include: Amplifierx1