Product Details . 

• Bluetooth: V4.2
• Working distance: up to 10m
• Voltage: DC 5V
• Battery charge time: 2-3h
• Loudspeaker: 4Ω3W
• S/N ratio: >=95db
• Frequency response: 280HZ-16KHZ
• Dimension: 92(H)*92(W)*46(D)mm
• Net weight: 198g

Features

• Support phone/ laptop/ tablet PC/ support U disk/ TF card(mini micro card)
• Modular buddy-jack' design: connect a row of mini speakers to get jaw-dropping audio performance
• Expanded bxs(Bass Xpansion system) drives a fuller, richer low-end response
• New, larger 45mm driver delivers precise high for superb sound