2600mAH large battery, long battery life, stable UHF connection signal, strong penetrating power, intelligent noise reduction, no whistling, compact and portable, support Bluetooth TF card U disk connection UHF BLUETOOTH :1500m LOUDSPEAKER/ANTI-HOWLING/STRONG ENDURANCE Built-in optimization for no howling:The intelligent frequency conversion power amplifier has a built-in anti-whistle module, presents high-fidelity sound quality, and hears clearer and louder sounds UHF connection is not interrupted, farewell to the trouble of sound lag Traditional FM channel connection, prone to interference<br><br>Loud volume: High-fidelity speakers restore the beauty of sound; 5W high power and large volume / strong penetration Easy coverage of 1500:5W high-power uniform amplification, wide amplification area, let the sound spread to every corner REC one-key recording Retrieve the class review at any time:Support one-key recording, automatically save audio files to TF card/child disk Not only amplifying, but also a protector in the dark:With direct lighting, you are fearless even if you travel at night Separate design of acoustic noise reduction microphone, easy to wear:210g light body, easy to wear, not on the waist, unlimited use place Colour:Rose Gold Material:ABS<br><br>Package Contents: 1 * Portable Bluetooth Speaker 1 * 2-in-1 Charging Data Cable 1 * Wireless Headset 1 * Wired Headset 1 * Waist Belt<br><br>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.