Features: 1. Easy to install, maintain 2. Allow PIN code entering and reciprocal phone-card lock 3. optimized circuit directly connecting the exchange device 4. Polarity reversal signal for metering; 3.5dBi gain antenna 5. Compatible to PABX; Suitable for call termination of ISP; Incoming call reminder, time display Eu versions: (Support countries in , Southeast , the Middle , Oceania, Europe, Latin America, etc. confirm whether the following frequency bands are compatible with your country purchasing, ) 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 4G Band 3,5,40 Frequency 1800/850/2300MHZ 4G Band 3,20,7,1 Frequency 1800/800/2600/2100MHZ Plug Type:EU Plug,it applies to Indonesia, , , , and so on Voltage: AC100-240V Support: Alarm System PABX Type: 4G color: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 a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin