Handheld USB 2D 1D Barcode Scanner COMS Sensor High-speed Scanning QR Code Reader Plug and Play Support Auto-sensing/Continuous Scanning Long USB Cable for Mobile Payment Suitable for Supermarket Retail Shop Grocery Store Warehouse Model: U30 Scan mode: Push-button trigger/auto-sensing/continuous scanning Prompt way: Buzzer, LED light How it's set up: Manually scan the setting code one after the other Housing material: ABS+PC Cable standards: USB straight line 1m Exterior dimensions: 172mm×63mm×85mm(product); 195mm×105mm×80mm (outer packing) Weight: 163g (net); 292g (including packaging accessories). Sensors: CMOS Resolution: 640*480 Light source: White LED Scan angle: ± 60°, ±60°, 360° (elevation, declination, rotation). Scan rate: 30 frames/sec Field of view: 48° (H) x 30° (V) Print contrast: 15% minimum Decode the kind 1D: EAN- 13, EAN-8, UPC-A, UPC-E, Code 128, Code 39, Code93, Interleaved 2 of 5, Industrial 2 of 5, Matrix 2 of 5, Code 11, CodaBar, MSI-Plessey, GS1 Databar(RSS), etc 2D: QR Code, Data Matrix, PDF417, Micro QR, Aztec, etc, support mobile phone screen code reading Minimum resolution: 1D code 3MIL; QR code 5MIL  Depth of field QR (7mil): 30~110mm QR payment code (mobile code): 40~500mm Data Matrix (10mil): 20- 150mm PDF 417 (6.7mil): 20- 150mm EAN- 13 (13.3mil): 30~300mm Code 39 (8.3mil): 40~235mm Input voltage: DC 5V±10% Current: Operating: 350 mAh; Standby: 130 mAh Battery: 2000mAh lithium-ion battery Charging time: 4 hours Battery life: 30 days (standby), 6-7 hours (operating: scanning every 5 seconds) Ambient brightness: Max.5,000 Lux (fluorescent) Seismic resistance: It can withstand a 1.5m drop in the air