Cellphone-Mate CM2000-WL-55 55/60dB Dual Band SOHO Amplifier Complete Kit for Home Office Warehouse Complete kit includes: 1. CM2000-WL 55dB Booster (with power supply) 2. CM288W Outside Antenna 3. CM222W Inside Antenna 4. CM004-40-FN 40ft CM240 coax cable 5. CM004-20-FN 20ft CM240 coax cable Large heatsink for cooler operation. Kit is best for Home and Office up to 2,500 Sq. Ft. Dual Band Coverage for most US Cell Phone Provider (T-Mobile, AT&T, Verizon Wireless, Sprint, etc - excluding Nextel iDEN) Wireless operation with multi user support.