WinBridge Voice Amplifier Speaker with Two Microphons Headset Mic and Lavalier Mic Portable Pa Amplifier for Teachers, Elderly, Parkinsons, Tour Guide, 10W WB378 WinBridge the latest version WB378 rechargeable voice amplifer comes with two WIRED microphones (headset & lavalier mic)! Pefectly choice for teacher, tour guides and coach. This mini PA (Public Address) with LED display, support FM and TF card & USB flash drive! How this microphone and speaker is very lightweight! Only 220g/7.76z, Size: 88mm*110mm*32mm. This is a really great voice speaker aid for doing presentations or running meetings ( for about 30 to 50 people ), particularly if one is having trouble with one's own vocal volume. 30 days return and refund without any reason + 12-month warranty + Lifetime technical support &gt; = Ensures the long-time enjoyment of your purchase In order to true rewards of new and old customers back, we WinBridge new release this model WB378 which comes with two microphones (headset &amp; lavalier mic) The headset is necessary in a formal occasions, Comfort Designed Wire Frame &amp; Wired Boom For Secure Fit AND its arm can be bent to adjust the positio The lavalier microphon is very easy to use and it stay tightly on the collar. Provides clear voice reproduction. Extremely light weight. Strong clip. Generous cord needs to be placed in pocket to prevent entanglement. The volume control is a great perk FM radio Read USB flash drive Support reading TF card One key loop Output power: 10W Charging Voltage: DC 5V, 500mA Lithium battery: 1050mA Charging time: 3~5 hours Product size: 88mm*110mm*32mm Unit weight: 220g Frequency response: 90Hz~18KHz Color: Black*White