Wireless is good. There are several reasons:
The first cable hammer is inseparable from the power supply, and must be used in a place relatively close to the power supply. The charging hammer is only charged, you do not have to consider whether there is a power supply nearby, regional restrictions, charging hammer is more convenient.
The second cable hammer can be continuously used, uninterrupted use (the use of the hammer to consider its temperature change, the uninterrupted said here does not refer to the interruption due to cooling), because there is a power supply to maintain uninterrupted power supply. The charging hammer, the charge storage power is limited, will soon run out, even if there is a backup battery, but also limited by the use of short time.
Third, the cable hammer is generally 220 volts, need to be connected to the power supply, and the charging hammer is charged out of the wire power supply, from a safety point of view, the charging hammer in use, the safety factor is higher than the cable hammer.
Electric massage hammer wireless is better, because it is more convenient to use.