About Product:Brand: arts zhuo time to market: 2018 origin: shenzhen supplies category: spot type: bluetooth speaker connections: bluetooth connection interface type: bluetooth battery capacity: no output power Applicable 2 w * 2 + 10 w power supply mode: need to match the cell broadcast time: 8 hours of bluetooth protocol: no bell count: four range: 10 m mode of operation: key applicable people: a general display No shell material: metal support APP: is supported formats: bluetooth speakers adjust way: button if there is a radio: no case material: metal appearance size: 208 * 171 * 333 mm product weight: 5 (K