["AN888S Digital Multimeter 19999 Counts True-RMS Multifunction Alarm Clock Bluetooth-compatible Speaker Thermometer High-Precision\n\nFeature:\nThis product is a lithium battery-powered, True RMS, auto-range multi-function digital multimeter with 19999 counts LCD display and adjustable backlight brightness. It is equipped with clock, alarm clock, Bluetooth-compatible to for play music, temperature display.\n\nParameters:\nLCD Counts: 19999\nMeasuring Range: Auto/Manual\nMaterial: ABS+TPE\nSampling rate: 3 times / Second\nTrue-RMS: YES\nData Hold: YES\nLCD Backlight:YES\nLow battery indicator:YES\nAuto standby: YES\nClock settings: YES\nAlarm settings YES\nSize: 200*135*105mm\nWeight: 895g\nRechargeable and replaceable batteries (Optional)\nBattery: 18650 * 2 \nenvironment temperature:0~40℃ (32~104℉)\nenvironment humidity:<70%\nstorage temperature:-20~60℃ (-4~140℉)\nstorage humidity:<80%\nReplaceable fuse\n\nElectric Specification:\nMeasuring AC and for DC voltages: 19.999mV~199.99mV~1.9999V~19.999V~199.99V~1000.0VDC (750.0VAC)\nMeasuring AC and for DC current: 19.999mA ~199.99mA~1.9999A~19.999A\nMeasuring resistance: 199.99Ω~1.9999kΩ ~19.999kΩ ~199.99kΩ~ 1.9999MΩ~19.999MΩ~199.99MΩ\nMeasuring capacitance: 9.999nF~99.99nF~999.9nF~9.999μF~99.99μF~999.9μF~9.999mF\nMeasurement frequency / duty cycle: 99.99Hz~999.9Hz~9.999kHz~99.99kHz~999.9kHz~6.000MHz\nTest continuity: YES\nTest diode: YES\n\nBluetooth-compatible Speaker Specification:\nBluetooth-compatible Version: V5.0\ntransmission distance: <=10M\nrated power: 2 x 4W RMS\nBluetooth-compatible connection to for play music\n\nPackage included:\n1 * AN888S Digital Multimeter\n1 * Pair Test Leads\n1 * USB Cable\n1 * User Manual"]