An adjustable band ring includes a band formed by threading a thread through a thread hole provided on each of individual jewel or precious metal beads, a chain-like band formed by joining individual sub-chains made of precious metals, or a ring band formed by joining individual sub-rings made of precious metals. The apparatus comprises an IP router for routing IP packets between a user equipment attached to the residential network, and said Wide Area Network. One side of the sealing member is pressed against a sealing face and is provided within a cavity formed in the turbine housing and including the sealing face on a peripheral side of the shaft.