"* Power: 5W; *Automatic call sign identification code * LOW BATTERY alarm * 2-Tone decoding * High / low power conversion * Tail elimination of non-slip design 1> frequency range 400-420MHz 450-470MHz 2> number of channels 16 3> 12.5-25KHz channel spacing 4> Lithium Battery 1250mAH 7.4V 5> size LWH (without antenna): 111 * 54 * 30mm Applications: Hotel parking facility construction site security