Complete with a handle, this portable speaker unit is perfect for any scenario. Once charged, just grab the handle and take the speaker with you anywhere! it has the power for any outdoor or indoor situation. The speakers have an led light that shines a stylish blue glow through the speakers. Not only do they produce amazing quality sound, they look great too!1) output power: 3w*1 2) frequency response: 120 hz-18khz 3) horn size: 3inch/4 4) built-in battery: lithium battery 3.7v/800mah 5) input power: 5.0v 6) with bluetooth function Speaker function: support 3.5mm audio, pc audio input, sd and usb card, fm radio Accessories: usb charging cable, 3.5mm audio cable, remote control Size: 112*85*147mm meas:495*495*360mm(box/40units) Custom service: 1. Support for oem/odm custom-made: as the product factory, we welcome you to customize the wood green product, we can provide you free to add corporate advertising or your company logo. 2. We also can make out a cheapest program design that suit for your needs. Warranty service: 1. Before the delivery, we will check the the items' quality strictly one by one. 2. If for the shipping accidents caused, we will not responsible for it. 3. 12 months manufacturer's limited warr Anty for defective items (excluding items damaged and/or misused after receipt)