2017 Newest Christmas Gift Mini Speaker Box, It has a unique design, mini body, easy to carry, it is a good choice for Christmas gifts. 1) Output power: 3W*1 2) Frequency response: 120 Hz-18KHz 3) Horn Size: 3inch//4Ω 4) Built-in battery: lithium battery 3.7V/500MAH 5) Input power: 5.0V ...