Z-501 is a programmable 4-key remote based on ZigBee HA standard. It can join in ZigBee network and bound with other device. It controls the devices bound with itself by transmitting and receiving ZigBee control signal. User can designate and program each key based on their needs. Z-501 is equipped with the newest energy saving technology, 1 button battery can last for years. It is entirely compatible with IEEE 802.15.4 ZigBee HA standard and suitable for joining in any ZigBee HA standard network.