Main Features:- Three scanning modes, including continuous scan mode, manual mode, auto off mode- Long working time with a full single charge- The sound size of prompt tone can be adjusted by setting the size of the bar code- Built-in 256KB memory storage mode, it can store more than ten thousand pieces of information- Built-in Bluetooth disconnected 2KB memory as temporary data, it can store approximately 110 pieces of data when using- It can be set up by reading the bar code to change the data transmission format, edit the data and bar code type- Built-in 1000mAh rechargeable lithium-ion battery supplies 24hrs working time and it can be fully recharged for 4hrs, standby time up to 36 hoursSpecifications:- Bluetooth 4.0 + EDR version- Bluetooth range: 10m visual range- Sensor: 2500 pixels- Communication mode: SPP, HID- Light source: red LED about 630nm- Support barcode: Codabar, Code 11, Code 93, MSI, Code128, UCC / EAN-128, Code 39, EAN-8, EAN-13, UPC-A, ISBN, Industrial 25, 2 / 5 Matrix- Resolution: 5mil- Depth: 6 - 30cm- Scan speed: 200 times / sec- Prompt mode: buzzer, LED indicator- Print contrast: 30 percent- Cylinder horizontal scanning: diameter 35mm- Powered by 1 x lithium-ion battery ( included )- Charging time: 4 hours- Working time: 24 hours - Standby time: 36 hours- Operating environment: 0 Deg.C to 50 Deg.C- Storage environment: 0 Deg.C to 50 Deg.C- Operating humidity: 20 - 85 percent ( non-condensing )- Storage humidity: 20 - 85 percent ( non-condensing ) Color: Black Model Number: MJ - 2877 Package weight: 0.193 kg Product Size(L x W x H): 10.00 x 4.50 x 2.00 cm / 3.94 x 1.77 x 0.79 inches Package Size(L x W x H): 13.50 x 10.50 x 5.50 cm / 5.31 x 4.13 x 2.17 inches Package Contents: 1 x MJ - 2877 Wireless Bluetooth Auto Sense Laser Barcode Scanner, 1 x Lanyard, 1 x Lithium-ion Battery, 1 x Bluetooth Receiver, 1 x USB Cable, 1 x English User Manual