&lt;h1 class=&quot;a-size-base-plus a-text-bold&quot; style=&quot;outline: 0px; margin-bottom: 0px; padding: 0px 0px 4px; border: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; list-style: none; text-rendering: optimizelegibility; color: rgb(15, 17, 17); font-family: &amp;quot;Amazon Ember&amp;quot;, Arial, sans-serif; line-height: 24px !important; font-size: 16px !important; font-weight: 700 !important;&quot;&gt;About this item :&lt;/h1&gt;&lt;ul class=&quot;a-unordered-list a-vertical a-spacing-mini&quot; style=&quot;line-height: normal; outline: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 18px; padding: 0px; border: 0px; font-size: 14px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; list-style: none; color: rgb(15, 17, 17); font-family: &amp;quot;Amazon Ember&amp;quot;, Arial, sans-serif;&quot;&gt;&lt;li class=&quot;a-spacing-mini&quot; style=&quot;line-height: normal; outline: 0px; margin: 0px; padding: 0px; border: 0px; background: transparent; list-style: disc; overflow-wrap: break-word;&quot;&gt;&lt;span class=&quot;a-list-item&quot; style=&quot;line-height: normal; outline: 0px; margin: 0px; padding: 0px; border: 0px; background: transparent; list-style: none; color: var(--N4QdCheV6mGo,#0f1111);&quot;&gt;YOUR VOICE AMPLIFIER: Insert the microphone headset into the jack, it become your throat helper for indoor/outdoor speaking. Let you can be heard clearly by people. Built in DSP noise reduction and 3D stereo structure, not just can reduce the noise but also provide you a better sound effect. The stable performance is perfect for amplifying your voice &amp;amp; saving your throat. Note: The item haven't bluetooth function. HIFI is not brand on package, it's a technical term.&lt;/span&gt;&lt;/li&gt;&lt;li class=&quot;a-spacing-mini&quot; style=&quot;line-height: normal; outline: 0px; margin: 0px; padding: 0px; border: 0px; background: transparent; list-style: disc; overflow-wrap: break-word;&quot;&gt;&lt;span class=&quot;a-list-item&quot; style=&quot;line-height: normal; outline: 0px; margin: 0px; padding: 0px; border: 0px; background: transparent; list-style: none; color: var(--N4QdCheV6mGo,#0f1111);&quot;&gt;ADJUSTABLE MICROPHONE HEADSET: The microphone headset is lightweight and adjustable. You can adjust the distance between the microphone and mouth with its flexible gooseneck. Comfortable design for long sessions. Please keep the speaker and microphone at a distance to avoid facing each other so the signal won't get affected.&lt;/span&gt;&lt;/li&gt;&lt;li class=&quot;a-spacing-mini&quot; style=&quot;line-height: normal; outline: 0px; margin: 0px; padding: 0px; border: 0px; background: transparent; list-style: disc; overflow-wrap: break-word;&quot;&gt;&lt;span class=&quot;a-list-item&quot; style=&quot;line-height: normal; outline: 0px; margin: 0px; padding: 0px; border: 0px; background: transparent; list-style: none; color: var(--N4QdCheV6mGo,#0f1111);&quot;&gt;RECHARGEABLE SPEAKER: Wireless portable voice amplifier built-in a 1800mah lithium battery and can be used continuously for about 6-8 hours. The wireless microphone can be used for about 4-6 hours. Charging takes only 3 hours. This voice amplifier light will show the SP sign on the screen when connecting charger.&lt;/span&gt;&lt;/li&gt;&lt;li class=&quot;a-spacing-mini&quot; style=&quot;line-height: normal; outline: 0px; margin: 0px; padding: 0px; border: 0px; background: transparent; list-style: disc; overflow-wrap: break-word;&quot;&gt;&lt;span class=&quot;a-list-item&quot; style=&quot;line-height: normal; outline: 0px; margin: 0px; padding: 0px; border: 0px; background: transparent; list-style: none; color: var(--N4QdCheV6mGo,#0f1111);&quot;&gt;SUPPORTS MUSIC PLAYING: TF (Micro SD) card playing &amp;amp; USB flash drive playing. You can repeat single tune, loop all music and switch songs. Supporting 3.5mm AUX audio input (Mic port can be used as AUX port), easy to use as a wired speaker. You can use it not only as a voice amplifier but as a music player with TF card or USB pen drive.&lt;/span&gt;&lt;/li&gt;&lt;li class=&quot;a-spacing-mini&quot; style=&quot;line-height: normal; outline: 0px; margin: 0px; padding: 0px; border: 0px; background: transparent; list-style: disc; overflow-wrap: break-word;&quot;&gt;&lt;span class=&quot;a-list-item&quot; style=&quot;line-height: normal; outline: 0px; margin: 0px; padding: 0px; border: 0px; background: transparent; list-style: none; color: var(--N4QdCheV6mGo,#0f1111);&quot;&gt;LIGHT WEIGHT POWER BOX: This microphone and speaker set is a portable public address system. You can take it to multiple locations such as classrooms, bingo calling and outdoors. Output loud enough to cover a room with a large group of 20-50 people. A big help in speaking to 20-50 members in your group.&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;