Manufacturer: Huawei
Model: B681
Unlocked: Fully unlocked. ready to use with global internet providers
Network Bands
• 3G HSPA+/HSUPA/HSDPA/UMTS (WCDMA) - 850/900/1900/2100MHz.
• 2G GSM/GPRS/EDGE - 850/900/1800/1900 MHz.
• Wi-Fi Standards: 802.11b/802.11g/802.11n.

Connectivity Interface: SIM-Card Slot
Data Speed: Download up to 28.8 Mbps, Upload up to 5.76 Mbps.
Memory: MicroSD card slot up to 32GB.
Ports: USB 2.0 host interface.
Display: Led indicator.

Antenna: Built-in UMTS and WLAN high gain antenna. External main diversity SMA antenna interface .

Dimensions Size: 180x123x32.5 mm.
Weight: 300g.

Supported Systems Windows 2000, Windows XP, Windows Vista, Windows 7,8.
Features
• Receiving diversity and load equalizer.
• User-friendly design of LED indicator. Easy to observe the status of equipment.
• Intuitionistic and convenient Web-based management..
• Security services. Provides instant protection to block potential security risks and intrusion attempts.
• Built-in DHCP Server, DNS RELAY and NAT.
• WPS.