... Touch4\other external speaker phones!2, Magical sound amplification function for mobile phone or other external speaker devices.3, No paired set ... tooth, WIFI or wires is required4,Support IOS device and mobile with Android system5,Power out-put: RMS 2W*26,Impedance ... external speakers or devices.2.4 Audio interface channel: Support mobile phone, MP3/MP4/MP5/ panel computer, notebook, desktop computer ...