1.Fixed several frequency receiver 2.Receiver for meeting,school and ect. 3.Battery:AAA*2pcs. Fixed frequency radio with LCD display and earphone.Receiver for meeting, school,ceremony and ect.Reception range: Reception range: 65 to 90 or 85 to 110Hz. Reception frequency: 70 to 108MHz Can be optioned as the customized 20 channel fixed frequency. Battery:AAA*2pcs. Fixed frequency radio Reception ...