How much does this cost to the nearest dollar?

Retekess T128 Restaurant Pager System,Wireless Caregiver Call 4-Key Waterproof Alert Call Buttons for Waiter,Customer,Staff,Caregiver
Retekess T128 watch pager system can add up to 500 call buttons; compatible with all Retekess transmitter; widely used in restaurant; cafe; bar; hotel; clinic; church; apartment Restaurant call system 7 prompt mode; vibration; buzzer; flash; free combination; quiet clinic or cafe; noisy restaurant or bar; arbitrary switching; meet your requirements Long distance; open area call transmitter and wrist receiver can reach 200m or 656ft; signal stable; enough to cover the whole house; improve staff service efficiency Wireless pager built-in 400mAh rechargeable lithium battery; USB charging port; charging

Price is $73.00
Price: $72.99