Financial services are the largest market resource within the world, in terms of earnings. Defining Financial Services can also be termed as, any service or product of a financial nature that is the area under discussion to, or is governed by a measure maintained by a Party or by a public body that exercises regulatory or supervisory authority delegated by law.
Tx Power: The Transmission Power describes how far a beacon can transmit data. This can be as little as 4 meters, but many reach some 50-90 meters. However, it is not necessary that this number be humongous. A 50-meter range beacon can be just as useful as a 90-meter depending on the specific use.
The official Wi-Fi direct site (see under the point How far does a Wi-Fi Direct connection travel?) states that the maximum range of WiFi-direct is up to 200 meters (which is 656 feet), but I highly doubt that phones already achieve this range...