4 Pack Vacuum Cleaner HEPA Filters for Cyclonic Series RO3753EA RO3731EA RO3786EA One to two Bluetooth connectivity, true 6D surround sound.<br> 1 high medium and low full frequency internal magnetic horn unit Paired with 2 bass capsules, Dual membrane resonance for a more realistic auditory experience.<br> Power Bank Features,USB and Type-C output interfaces facilitate emergency charging of other small appliances.<br> 360°omnidirectional sound effect is immersive and stunning.<br> Energy saving and low consumption, keep you up all day.<br> Cool and colorful atmosphere lights, with beautiful and high-quality lighting colors that can be easily switched.<br> Retractable shoulder strap,Shoulder straps can be freely loaded and unloaded, and you can easily carry them wherever you go Hi listen.<br> The casing of the box is made of ABS and rubber materials, which are sturdy and wear-resistant.<br> Protection function:overvoltage protection<br> Input parameters:100HZ-20KHZ<br> USB output parameters:5V 2.1A<br> Type-C output parameter:18W<br> Due to different batches, there may be differences in product appearance, color, and printed text, which will not affect the use.<br> Application scope:for Milwaukee 18-20V Lithium Battery<br> Colour:Red<br> Material:ABS<br> Package Contents:<br> 1 * Speaker<br> Only the above package content, other products are not included.<br> 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.