K400 Portable Voice Amplifier Megaphone — 5W, Dual 3W HD Stereo, FM/TF/MP3, Waist Clip, LCD, 128dB

Overview: The K400 portable audio speaker and voice amplifier is a compact megaphone-style loudspeaker designed for clear voice projection and portable use. Built from UV & ABS materials, it supports multiple power methods and offers long continuous operation with an LCD status display. Key Specifications: - Material: UV & ABS - Rated Power: 5W - Speaker output: dual 3W HD stereo speakers (supports recording playback from TF card) - Degree of Separation: 80dB - SNR: 83dB - Distortion Degree: 1 37V, 1Khz, 1W) - Impedance: 2 - Working Voltage: DC 3.7V - Input: DC 5.0V - Input Power: Power Adapter, USB Power Supply, Lithium Battery - Lithium Battery Capacity: 18650 battery(not included) - Display Screen: LCD - Working Temperature: -5 ~ 40° Features: - Insert a TF card to play recorded files and use the unit's recording function; audio is output via the dual 3W HD stereo speakers. - LED/LCD display provides clear information and device status. - Supports MP3 / WAV lossless decode for high-quality playback. - Extremely long runtime — can continuously work for 72 hours. - High output level: single track loudness can reach 128dB. - Portable design includes a waist band clip for hands-free carrying and comes with a head-mounted cable microphone for voice pickup. - FM radio support and MP3 playback for versatile audio sources. Package Includes: 1 x Mini Audio Speaker 1 x Cable Head Microphone 1 x Belt 1 x Certification of Competency 1 x Power / Data Line Related products: voice amplifier for teachers, classroom microphone for teachers, portable microphone and speaker, voice amplifier wireless microphone, portable speaker with microphone, microphone and speaker.