SENAO SN 358+ Long Range Cordless phone 500m to 15km.UP to 99 Handsets on one base. * Range with base antenna= 300m to 1km* Range with outdoor antenna= 2km to 15km100 % Original Brand New SENAO R.O.C Taiwan - Beware of copies and cloned products!Recommended model for business and office use - Very popular model for small and big companies,commercial buildings, warehouses, hotels, auto dealers, real estate agents ...Multi-Handset system (Up to 99)Walkie-Talkie Between Handsets.Intercom between base and handsetsHandset & Base Speakerphone.Multi-Languages Display (English, Russian, Arabic, Turkish, Spanish)High Capacity Battery (1100mAh)FSK/DTMF Caller IDSecurity:Multiple Channel Access: 120 channels automatic scan to avoid interferenceBuilt-in voice security circuit (Scrambler).65,536 sets security codes (two-way)Works on two frequencies in the same time : 394 MHz / 268 MHzYou should check with local authorities for legality of usage for these frequencies