... ≤20mWTransmitted Distance>1000m in open area Picture of Guest Pager SystemDelivery time:sample or small order within 3 days and ... : T/T, Western union, Paypal, EscrowWarranty: 1 year FAQApplicationsGuest Pager System can be used in restaurants, hotels, hospitals, tea house ... , health clubs, beauty salon, spa center, bars, swimming pool, beach, etcWhat are the components of the wireless calling system?1 ...