A golf club comprising: a golf club head having a body with a striking face configured for striking a ball; a shaft connected to the head and extending from the head; and a port located in the head or the shaft, the port configured to receive a monitoring device for measuring at least one characteristic of a golf swing, wherein the port has an engagement mechanism configured to engage the monitoring device in an engagement configuration that is configured to cause the monitoring device to operate in a selected manner; wherein the monitoring device is configured to be pressed to the engagement mechanism; wherein the engagement mechanism further comprises a removable section configured to be received in the head or the shaft, wherein the removable section is configured to engage the monitoring device in the engagement configuration, and wherein the removable section is configured to removably engage the head or the shaft with at least one of: press fitting, snap fit mechanisms or mechanical fasteners; wherein the removable section comprises a plurality of protrusions forming the engagement configuration; and wherein the protrusions are configured to be received in openings in the monitoring device to cause the monitoring device to operate in the selected manner; and wherein the golf club further comprises the monitoring device, wherein the monitoring device comprises a plurality of sensors, and wherein the monitoring device is configured to utilize input from at least a first sensor when engaged by the engagement mechanism in the engagement configuration. a golf club head having a body with a striking face configured for striking a ball; a shaft connected to the head and extending from the head; and a port located in the head or the shaft, the port configured to receive a monitoring device for measuring at least one characteristic of a golf swing, wherein the port has an engagement mechanism configured to engage the monitoring device in an engagement configuration that is configured to cause the monitoring device to operate in a selected manner; wherein the monitoring device is configured to be pressed to the engagement mechanism; wherein the engagement mechanism further comprises a removable section configured to be received in the head or the shaft, wherein the removable section is configured to engage the monitoring device in the engagement configuration, and wherein the removable section is configured to removably engage the head or the shaft with at least one of: press fitting, snap fit mechanisms or mechanical fasteners; wherein the removable section comprises a plurality of protrusions forming the engagement configuration; and wherein the protrusions are configured to be received in openings in the monitoring device to cause the monitoring device to operate in the selected manner; and press fitting, snap fit mechanisms or mechanical fasteners; wherein the removable section comprises a plurality of protrusions forming the engagement configuration; and wherein the protrusions are configured to be received in openings in the monitoring device to cause the monitoring device to operate in the selected manner; and wherein the golf club further comprises the monitoring device, wherein the monitoring device comprises a plurality of sensors, and wherein the monitoring device is configured to utilize input from at least a first sensor when engaged by the engagement mechanism in the engagement configuration.