Sony CD Player Discman D-E305 ❇️ Defective Items ❇️ Set of 2 The left one was tested with an AC adapter, but it does not power on. Operation is unknown with batteries as it was not tested. The right one was tested with an AC adapter and powers on, but does not read CDs. Operation is unknown with batteries as it was not tested. This is an auction for the main units only. Operation was tested using an AC adapter; batteries were not used. Whether they operate with batteries is unknown.