The rechargeable speaker is convenient and practical, with excellent texture, and can serve you for a long time without being easily damaged. The craftsmanship can serve you well without breaking easily. This is a very practical rechargeable speaker. Features -Material: plastic - Size: 4.50X4.50X3.00cm/1.77X1.77X1.18in Channels: 2 Connection Mode: 3.5 mm AUX Battery: 3.7V 350mAh Power Output: 3W Power Input: DC 5V 500mA Frequency Response:50-18000HZ Rated Impedance:4 SNR:>=80dB - It is in stable characteristics, high performance and it is in great reliability, simple, easy to use. - Small and compact size, easy for you to carry and use it wherever you go. - Small in size, this plug in speaker will not take up much space, easy to carry and use anytime anywhere. - It can be placed vertically, occupying a small space, and achieve good sound effect. - It is simple in design, but very practical in use, which brings great convenience to you. Package list: 1 x speaker