* bluetooth specification: v4.0+edr, csr8635 chipset * bluetooth profiles: hsp, hfp, a2dp and avrcp * operating distance: 10 meters class ii * power bank: in-5.0v 1.0a ; out-5.0v 1.0a * battery capacity: 7000mah 3.7v lithium ion battery * music playing time: about 18-25 hours * standby time: about 200 hours * charging time: about 10 hours * output power: 3w*2 * dimension: 182*70*70mm * weight: 590g What¡¯s in the box: Speaker Charging cable Audio cable Packing info: Dimension: 182*70*70mm Weight: 590g