Feature:1. Versatile multimeter combines the function of multimeter, speaker, alarm clock, time, and thermometer in one.2. Able to measure DC/AC voltage, DC/AC current, resistance, capacitance, frequency/Duty Cycle, continuity, diode and ambient temperature. Voice broadcast can report the current mode and values in real time.3. Speaker funtion with BT connectivity allows you to connect your device and play musics, delivers excellent sound quality and decent bass, with 30 settings of volume control.4. LCD display, 19999 counts, with backlight, clear to read even in the dark.5. More features - buzzer, true-RMS, Auto/Manual ranging, data hold, max/min/relative value, low battery indicator, auto-off in 15 minutes, and Celsius/Fahrenheit degree.Specification:Features:Versatile multimeter combines the function of multimeter, speaker, alarm clock, time, and thermometer in one.Able to measure DC/AC voltage, DC/AC current, resistance, capacitance, frequency/Duty Cycle, continuity, diode and ambient temperature. Voice broadcast can report the current mode and values in real time.Speaker funtion with BT connectivity allows you to connect your device and play musics, delivers excellent sound quality and decent bass, with 30 settings of volume control. LCD display, 19999 counts, with backlight, clear to read even in the dark.More features - buzzer, true-RMS, Auto/Manual ranging, data hold, max/min/relative value, low battery indicator, auto-off in 15 minutes, and Celsius/Fahrenheit degree.Multimeter Parameters:LCD Display: 19999 countsTrue RMS: yesSampling Rate: 3 times per secondDC Voltage:Range: 1.9999V-1000.0V; 19.999mV-199.99mVResolution: ±(0.05%+3)AC Voltage:Range: 1.9999V-750.0V; 19.999mV-199.99mVResolution: ±(0.3%+3)DC Current: Range: 1.9999A-19.999A; 19.999-199.99mAResolution: ±(0.5%+3)AC Current:Range: 1.9999A-19.999A; 19.999mA-199.99mAResolution: ±(0.8%+3)Resistance:Range: 199.99-199.99MResolution: ±(0.5%+3)~±(5.0%+5)Capacitance: Range: 9.999nF-9.999mFResolution: ±(5.0%+20)-±(5.0%+5)Frequency:Range: 99.99Hz-6.000MHzResolution: ±(0.1%+2)Specifications:Type: Without Rechargeable Battery / With Rechargeable Battery / Without Rechargeable Battery & With 18-in-1 Combination Lines / With Rechargeable Battery & 18-in-1 Combination Lines(Optional)Material: ABS, TPEColor: BlackBT: BT5.0 (effective distance≤10 meters)Input: DC5V 2ARated Power: 2x4W RMSFrequency: 100Hz-18KHzSNR: ≥76dBBattery Capacity: 2000 mAh (options)Item Size: 20*13.5*10.5cm / 7.87*5.31*4.13inItem Weight: 895g / 31.57ozPackage Size: 23*15.5*15cm / 9.05*6.1*5.9inPackage Weight: 1290g / 45.5ozPacking List:1 * Multimeter2 * Test Lead1 * Charging Cable1 * User Manual(English)Package List:1 * Multimeter2 * Test Lead1 * Charging Cable1 * User Manual(English)