High-Quality Sound and Connectivity: The for T18 features a wireless microphone with a stable and strong signal penetration and Bluetooth 5.0 for seamless connection to tablets, phones, and laptops. Enjoy high-fidelity sound with 30W speaker that ensures clear and powerful audio output. Long-Lasting Battery Life: Equipped with a robust 4000mAh battery, the for T18 offers extended use without frequent recharges, making it ideal for long sessions and outdoor activities. Versatile Playback Options: Supports playback via TF card, U disk, allowing you to or amplify sound from various sources. Designed for Mobility: Compact and portable, the for T18 is perfect for teachers, tour guides, and outdoor activities like yoga sessions. Its double hook belt design ensures it can be easily worn or carried, adapting to various usage scenarios. Speaker size:3.5 inches Output power:30W External storage:Supports TF cards and USB drives Battery capacity:4000mAh Charging specification:5V/1A Due to different batches, there may be differences in product printed text, which not affect use. Colour:Black Material:ABS Package Contents: 1 * Teaching amplifier kit 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.