2 in 1 Speaker and Power Bank】It acts as both a loud Bluetooth speaker and a 4000mAh power bank all at the same time. the best of all for a music lover is to be able to listen to music without the fear of your battery will be drain. Being able to play your music loudly. blue tooth speaker plug into the USB to charge for your phone directly. when the bluetooth Speaker get full charge, enjoy music around 7 hours【Portable Wireless Speakers】 As a backup power bank, it could be very important under certain circumstance. As a speaker, The small bluetooth speaker is loud and clear. The bass is also good for the size. Fitting easily into jeans pocket, purse backpack or large pockets to take it on the go. Sound Quality is good. The speaker bluetooth has a built in stand to keep it upright and not leaning on anything else.【Answering calls】 Bluetooth speakers are equipped with built in microphone for Handsfree calling, Built-in TF slot support MP3 Music Play. Play fast forward and rewind buttons allow you to control your tunes from it's base. You won't miss a call because the play button doubles as an answer button. OSCOO Carefully designed transducers keep total harmonic distortion below 5% for superior audio clarity.【The speaker works by bluetooth or with a memory card.】Attractive cloth cover the wireless bluetooth speaker supported formats are MP3, WMA, WAV. And the portable speaker will apply to your Phone, Notebook, Tablet etc. It has integrated many features, including Bluetooth connection, memory cards, TF card slot, a phone call feature, FM radio, power bank function, AUX input just in case your device doesn’t have Bluetooth. With USB port, Micro SD Card Slot, Micro USB, AUX Port, Power Button, Lanyar【Easy to use, great sounds】 the little speaker also for gifting in a sturdy white box. The mini speaker is simple to use which from box to fully set up playing music took less than a minute. Just simply plug into the mains, pair with the Bluetooth (no password required) Box may show wear...