[High Power & Loud Sound]: This portable amplifier is equipped with a 100W high power output, providing a loud and clear sound that can cover a distance up to 1000m. Ideal for large gatherings, outdoor activities, public speaking, and more. [Long Battery Life]: Powered by a rechargeable lithium battery this handheld amplifier can support up to 16 hours of continuous voice use. No need to worry about running out of power during important events or activities. [Multiple Alarm Modes]: The amplifier comes with a built-in alarm system, including a default siren, alarm, and ambulance alarm. It also supports U-disk, TF card, and BT alarm modes, offering a variety of alert options to meet different needs. [BT Connectivity]: With a BT range of 15 meters, this amplifier allows you to connect your devices wirelessly, providing a convenient and flexible way to or broadcast messages. Color:As Shown Material:plastic Package Contents: 1 * loudspeaker 1 * charging cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.