A high volume aerodynamic golf club head with a club head volume of at least 400 cc producing reduced aerodynamic drag forces. The connector includes a flexible and conformable sealing portion that is movable to accommodate misalignment. The ring groove of the hub as a depth dimension that is greater than half the thickness of the snap ring, thereby forming a tilt edge at the parting join of the shaft journal and hub. When one of the first connection sequence and the second connection sequence fails in the call connection, the other of the first connection sequence and the second connection sequence executes the call connection. The device 40 substantially reduces the burden of maintenance of the device 40 required in prior art such as replacing a primary battery or recharging a rechargeable battery periodically.