OKAYO Digital Wireless Compact Speaker wireless lithium also be used for disaster handheld 2.4GHz (Maximum 60W) (Built-in 2-wave tuner, built-in ion)

Perfect for meetings, events, nursing homes, kindergartens, culture schools, and recreation! For universities, high schools, junior high schools, elementary schools, kindergartens, community centers, assembly halls, corporations, and various organizations. We have a track record of implementation in companies. Portable! 2.4GHz digital wireless speaker set. - Since it is a digital 2.4GHz band, there is no interference with the 800MHz and 300MHz bands! This product is certified to comply with technical standards stipulated by the Radio Law. Includes 1 wireless hand microphone. Equipped with wired microphone input, LINE IN/OUT, and microphone mute function. Built-in 2-wave wireless tuner (two microphones can be used at the same time by adding one microphone sold separately) You can play background music as an audio file from a USB memory or SD card. You can play music from your smartphone or tablet using Bluetooth. Built-in Li-ion: 14.8V 5200mAh 76.96Wh [For speeches] Meetings, presentations, culture schools, seminars, wedding after-parties, various events, parties, etc. [For karaoke] You can play music from your smartphone or tablet using Bluetooth. ・Wireless connection ・Speaker is rechargeable, no power required! Built-in Li-ion: 14.8V 5200mAh 76.96Wh