1. Mini size, double injection molding and rubber protection around, durable enough for anti-dropping 2. Non-slip design (salient points on the rubber of the two sides) 3. Exclusive power indication light 4. Support USB, power adapter or power bank charging 5. Standby mode to save power 6. Provide SDK for IOS and Android Printing Method: Direct thermal printing Printing Width: 72mm Resolution: 203dpi Printing Speed: Max. 80mm/s Paper Width: 79.5±0.5mm Paper Loading: Easy paper loading Interface: Bluetooth+USB, WIFI+USB, Bluetooth+WIFI+USB Emulation: ESC/POS Power: 2000mAh rechargeable li-ion battery Certificate: FCCID, CE, 3C, ROHS Dimension (LxWxH): 113*103*45mm Weight: (G.W.)335gï¼?Including battery and paper rollï¼?