Features: Barcode Scanner with Retractable Phone Back Clip Design:The well-designed scanner does not block the mobile phone camera, and can be used as a mobile phone back clip. It is only 15.5mm thick and comfortable to hold. The bottom retractable bracket can clamp mobile phones with a length of 147-181mm(5.8-7.1in). It can also be used alone. BT&2.4G&USB 3in1 Connections: This 2D Barcode scanner can support USB wired connection and wireless connection(2.4G wireless or bt). You can easily connect with your laptop, PC, mobile phone, tablet. Work with Windows XP/7/8/10, Mac OS, Windows Mobile, Android OS, iOS. Support HID, SPP, BLE protocol. Large Rechargeable Battery&Long Transmission Rang: Built-in 1500mah battery, it has long standby time. No wires, BT transmission distance up to 15 meters. (without barriers, more convenient.) High Performance Chip: Super decoding capability of scaning paper code. Available to set the time of sleep mode. Stores barcodes more than 50000pcs off-line scanning. Decode Capability: Smoothly scan and decode 1D (Codabar,Code 11, Code93, MSI, Code 128, UCC/EAN-128,Code 39,EAN-8, EAN-13, UPC-A, ISBN, Industrial 25,Interleaved 25, Standard 25,2/5 Matrix,etc.); 2D (QR, DataMatrix,PDF41, Aztec, Hanxin, Micro PDF417) Specification: Model: MJ-R78 Wireless protocol: BT Memory: 16Mb Processor: ARM Cortex 32bits BT version: BT 4.1Module Supported symbologies: 1D: Codabar,Code 11, Code93,MSI,Code 128,UCC/EAN-128,Code 39,EAN-8, EAN-13,UPCA, ISBN, ndustrial25, Interleaved 25, Standard 25,2/5 Matrix, 2D: QR, DataMatrix,PDF41, Aztec, Hanxin, Micro PDF417 Indicator: Led, Buzzer, Vibrator Battery capacity: 1500mA Charging voltage/current: 5V/1A Endurance: 1D36H 2D24H5seconds/scan Charge time: 4hours Standby: >30days Ruggedness: Resist about 6 times drops from 1.5m to concrete ground Product Size: 147x70x15.5mm/5.8x2.78x0.8in Product Weight: 100g/3.53oz Package Size: 21.8x11.5x4cm/8.5x4.5x1.5in Package Weight: 202g/7.1oz Packing List: 1 x Scanner 1 x 2.4G Receiver 1 x USB Cable 1 x User Manual