Portable Voice Amplifier with Wired Microphone Headset Rechargeable Speaker Loudspeaker (Black) Small but powerful personal voice amplifier designed for clear sound amplification. This portable microphone speaker delivers 30 watts of output power, effectively amplifying your voice and helping protect your vocal cords. Ideal for addressing groups of 25 to 100 people in various settings. Equipped with a high-capacity 2200mAh rechargeable lithium-ion battery, providing up to 12 hours of continuous use on a full charge. Charges easily via the included USB cable in approximately 3 to 5 hours. Designed for comfort and portability, the loudspeaker features an adjustable band for waist or neck carry. Includes a back clip for securing to a belt or waistband. The wired headset microphone has a flexible gooseneck design that positions close to the mouth for optimal voice pickup. Built for stable performance, this voice amplifier is suitable for teaching, training, singing, coaching, tour guiding, presentations, yoga instruction, outdoor speaking, and other applications requiring reliable voice projection. Dimensions: 8.4 x 9.2 x 2.8 cm