- BlueLanse AL001 Rechargeable Voice Amplifier with 8W power, ideal for amplifying voice in classrooms, guided tours, conferences, and events. - Equipped with adjustable headset microphone, earphones, and waistband for comfortable, hands-free use. - 2200mAh lithium battery provides up to 20 hours of continuous use and recharges in 4-6 hours. - Supports music playback via USB, microSD, and 3.5 mm auxiliary input, compatible with smartphones and other devices. - 3-inch magnetic speaker with noise reduction technology for clear and powerful sound. - Compact design (15 x 12 x 7 cm) and lightweight (0.33 kg), easy to carry and place on belt, pocket, or neck. - Includes USB charging cable and user manual. - Perfect for teachers, tour guides, presenters, and anyone who needs to amplify their voice in open or closed spaces.