Speakers Bluetooth Subwoofer Speaker Wireless Bluetooth Mini Speaker Charge 2+ Deep Subwoofer Stereo Portable Speakers With Retail Package

Bluetooth version: 3.0 support: a2dp v1.3, avrcp v1.5, hfp v1.6, hsp v1.2 output power: 10w frequency response: 75hz-20khz signal to noise ratio:> 80 db power: 5vdc usb output: 5v2.1a (maximum) battery type: lithium polymer (3.7v, 1800mah) battery charging time: 4 hours! 1.8a music play time: up to 12 hours (due to the volume and audio content vary) size (high * wide * thick): 79 * 185.2 * 79mm) weight: 600g