in which countries wireless Body Area Network(BAN) products are commercially available?

If commercially available then under what brand names? What are their selling price? Are they available as integrated products?

BAN is the British acronym that referres to the American acronym PAN -personal area network- and is indicative of personal use devices.
Usually refers to bluetooth connections, or short distance wifi connections from personal devices . . . your cell to your laptop to your earpiece to your PDA. . . All of which are avalible in the US and multiple other contries. . . Same thing, just different terminology.

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Audio Technica ATW3110 3000 Body Pack Wireless System $289.99

NWOT-BODY FORM #2505-49 BROCADE BEIGE WIRELESS BRA-38C $3.99

Digital Bathroom Body Weight Scale Wireless Height Rod $18.00

330 Lbs PRO Digital body Scale Wireless Height Sensor $44.99

330 LBS PRO Digital Body Fitness Scale Wireless Display $54.99

Digital Bathroom Body Weight Scale Wireless Height Rod $11.00

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WIRELESS COLOR VIDEO WATCH CAMERA BODY WORN HIDDEN SPY $179.00

WIRELESS COLOR VIDEO BUTTON CAMERA BODY WORN HIDDEN SPY $179.00

WIRELESS COLOR VIDEO PEN BODY WORN HIDDEN SPY CAMERA $179.00

WIRELESS BODY FAT HYDRATION DIGITAL WEIGHT SCALE 5 $32.99

Tan Headworn Headset Mic for Shure Wireless Body Pack $79.99

BODY BY Victoria Secret 34C IPEX WIRELESS* NO WIRE Bra $0.99

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Mini Tan Headset Mic for Sennheiser Wireless Body Pack $79.99

WIRELESS COLOR VIDEO BUTTON CAMERA BODY WORN HIDDEN SPY $179.00

Sennheiser EW 300 IEM Wireless Transmitter + Body Pack $127.50

330 Lbs PRO Digital body Scale Wireless Height Sensor $44.99

330 LBS PRO Digital Body Fitness Scale Wireless Display $54.99

Digital Bathroom Body Weight Scale Wireless Height Rod $10.01

Light Blue with Pink Hearts Wireless Bra by GAP BODY $0.99

VICTORIA'S SECRET BODY IPEX STRIPES WIRELESS BRA 36C $4.99

Body By Victoria Wireless Bra 36C NWT $0.99

Body By Victoria Ipex Wireless Bra 36C Black Brand New $0.99

NEW Body By Victoria's Secret WIRELESS IPEX Bra 38D $14.99

OSP WMS4R UHF Wireless Body Pack Ear Monitor Receiver $299.99

Mini Mini Wanachi Wireless Personal Body Massager NEW $10.97

Anchor Audio Wireless Body Pack Transmitter - MiniVox $139.99

Fun Factory LAYAspot Wireless Personal Body Massager $35.95

WIRELESS CAMERA BODY WORN CLIP ON VIDEO DVR RECORDER 2G $129.99

34D Victoria's Secret Body by Victoria Wireless Bra NWT $26.99

Bendon Body Basics black soft cup bra wireless 10B - C $22.73

330 LBS PRO Digital Body Fitness Scale Wireless Display $54.99

330 Lbs PRO Digital body Scale Wireless Height Sensor $44.99