NEEWER VA01 Voice Amplifier with Wired Headset Microphone, Speaker, Shoulder Strap, AUX Output, USB C Rechargeable Portable Sound Amplifier with Mic 14Hrs Battery for Teachers, Trainers, Tour Guides

【Multifunctional Voice Amplifier】 This voice amplifier with headset microphone ensures clear and loud voice projection, ideal supplies and must have accessories for classroom teachers, singing teaching, fitness instructors, tour guides, and others professionals who need their voice heard clearly in noisy environments. An adjustable and detachable shoulder strap offers convenient portability during use 【Flash Drive/Bluetooth/AUX Modes】 Not just a voice amplifier with microphone headset system, this device doubles as a standalone speaker and supports 3 modes: 1) The USB A port allows direct audio playback from a flash drive. 2) Bluetooth connectivity enables wireless audio streaming from smartphones, tablets, and computers. 3) The 3.5mm TRS AUX input allows wired connection to external audio sources (cable not included) 【Integrated Rechargeable Battery】 Powered by a built in 2000mAh lithium battery, the device supports up to 14 hours of continuous use after approximately 3 hours of charging-suitable for extended daily use 【Premium Sound Output Quality】 Engineered for premium audio, the amplifier features a frequency response range of 80Hz-18kHz, a signal to noise ratio (SNR) of 70dB, and an impedance of 4Ω. These specifications ensure clear sound reproduction without distortion 【Magnetic Headset Microphone】 The portable headset style microphone is equipped with magnets for secure attachment and flexible positioning. The mic arm is fully adjustable to ensure optimal sound capture and user comfort