Bluetooth version:4.2
output power: 3w * 2
speaker: 40f, 4o/3w
battery capacity: 350mah
input power: dc5v 500ma
max consume current: 500ma
frequency response: 90hz-18khz
sensitivity: -58db
signal to noise ratio: ?70db
the distortion degree: ?0.3%
working time:
headphone mode: about 6 hours
speaker mode: about 3 hours
standby time: 23 hours