TK-3230 Normal Technical Standard Frequency Range: 460-470 MHz ,410-420MHz 16 signal channels of different frequency in single working form 39 group (QT) mute audio frequency/ 83 group (DQT) digital mute audio frequency 10 kinds of calling reminding sound 4 units & 7 steps LCD with background lightening 1.5 W radio frequency outputing power Power: 2000 mAh lithium battery Working hours of battery: 14 hours (closing the power saving function)/ 18 hours (unclosing the power saving function) Size (wide x high x deep): 52 x 103.5 x 28.7 mm (excluding outshoots) Weight: about 155 g , together with lithium battery