【 Small in size, loud in volume 】 - Compact and mini, light in weight. The maximum sound of 8 watts. High sensitivity and powerful sound penetration. The wired microphone amplifier produces clear, crisp, noise-free and distortion-free sound. 【 Large battery Capacity 】 - With a battery capacity of 1200mAh, it can be used continuously for 20 to 30 hours. It is convenient to charge and supports TPY-C charging. 【 Comfortable and Portable 】 - Easy to carry, with a complimentary lanyard and a clip on the back that can be attached to a belt or waistband. The microphone of the wired headphones is adjustable. The design is fashionable and suitable for use in various occasions such as teaching, trainers, singers, coaches, tour guides, shopping malls, speeches, yoga, and outdoor speeches. 【 Upgrade Microphone Speaker 】 - Clearer sound, stronger penetration, and simpler operation 【 Warm Reminder 】 - Before the first use, please charge the speaker and keep it at a certain distance from the wired teacher's microphone to avoid noise. Warranty: We offer unconditional returns within 30 days, a 12-month warranty, and lifetime technical support.