Width x Depth x Height: 68 x 45 x 245 mm Measurement range (dB): 30 to 130 Resolution (dB): 0.1 Frequency range (Hz): 31.5 to 8000 Measurement accuracy (dB): ± 1.4 (at 1 kHz) Frequency characteristics: A/C characteristics Power supply (V): 6 x AA电池(包括)或交流适配器(单 出售) 宽度(mm):68 深度(mm):45 电源:6 x AA电池(包括)或交流适配器(分别出售)