【Light Portable Voice Amplifier】 A small and compact amplifier that will project voice across the room. In addition to its ability to project voice from an adjustable microphone that is included in this product, 【Adjustable Headset Microphone 】The headset microphone can be positioned near your mouth with its flexible gooseneck design. The headset sits on top of the head so it is stable and won't fall off 【Personal Amplifier】This WB001 Voice Amplifier is a really great aid for doing presentations or running meetings, smallish groups where leader must be heard, particularly if one is having trouble with one's own vocal volume. 【Multifunctional Design】 Amplifier Speaker can also play music from TF card AND flash drive. Comes with a belt strap which can attaches with clips to the amplifier and then can be worn around the neck or through belt loops. 【Rechargeable Amplifier】A built-in rechargeable lithium battery offers you up to 5-8 hours of powerful amplification. WinBridge provides one year warranty and Lifetime technical support!.