1. Easy to install, maintain; 2. Allow PIN code entering and reciprocal phone-card lock; 3. Provide optimized circuit directly connecting the exchange device; 4. Polarity reversal signal for metering; 5. 3.5dBi gain antenna; 6. Compatible to PABX; 7. Suitable for call termination of ISP; 8. Incoming call reminder, time display; Eu versions: (Support countries in Asia, Southeast Asia, the Middle East, Oceania, Europe, Latin America, etc. Please confirm whether the following frequency bands are compatible with your country before purchasing, thank you) LTE FDD : B1 / B3 / B7 / B8 / B20 / B28A. LTE TDD : B38 / B40 / B41 WCDMA : B1 / B8 GSM : B3 / B8 Netherlands 4G: Band 1,3,7,8,20. Frequency 2100/1800/2600/900/200Mhz Israel 4G Band 1,3,5,28,32. Frequency 2100,1800,850,700,1500Mhz Japan 4G Band 28,8,11,1,41 700/900/1500/2100/2500MHz India 4G Band 3,5,40 Frequency 1800/850/2300MHZ 4G Band 3,20,7,1 Frequency 1800/800/2600/2100MHZ Plug Type: US Plug, it applies to Canada, India, Mexico, Thailand, Taiwan, the , the Philippines and so on. Voltage: AC110V Colour:White Material:plastic Package Contents: 1 x Wireless terminal 1 adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.