10W Voice Amplifier Wireless UHF Microphone Ultra Portable Mini Audio Speaker For Teachers Tourists Yoga

10W Voice Amplifier Wireless UHF Microphone Ultra Portable Mini Audio Speaker for Teachers Tourists Yoga Instructors Specifications: 1.Output Power: 10W 2.Charging Voltage: DC 5V, 500mA 3.Lithium Battery: 3.7V/1800mAh 4.Working Time: With 50% Volume 6~10 Hours Musical Mode, 8~12 Hours Mic Mode 5.Charging Time: 3-5 Hours 6.Product Size: 106*86*42mm 7.Unit Weight: 170g 8.Working Temperature: -10℃~45℃ 9.Frequency Response: 90Hz~Hz 10.Sound Coverage: 400㎡ 11.Wireless Distance: 30-35M Main Features: 1.SHIDU Patented Appearance 2.Stylish, Ergonomic and Comfortable Design; 3.High Power Double Magnetic Trumpet --- More Clear And Penetrating 4.5W Power Output, Sound Coverage Up to 400㎡; 5.Adopt Shidu Acoustic Amplification Electroacoustic System 6.Equipped With Shidu Special Acoustic Microphone --- Hi Fi Original Sound Amplification 7.Super Mp3 Audio Encoding Technology --- Supports Tf Card and U Flash Drive 8.Headset Wireless Mic With Built-In 380Mah Lithium Battery and; What is included Standard Package: 1 * Main machine 1 * Waistband 1 * SHIDU Wireless Microphone 1 * USB Charging Cable 1 * User Manual