Product Number   RETEKESS TR604   RETEKESS TR618   RETEKESS TR626   RETEKESS TR629   Frequency   FM : 87-108MHz   AM : 520-1710KHz   AM:520-1710KHZ    FM:87-108MHKZ          SW:6-18MHZ   FM:76.0-108.0MHz   AM:520.0-1710.0KHz   SW:8.0-18.0MHz   LW: 160 - 280KHz   FM:76.0-108.0MHz   MW:2.3-21.19MHz   AM:522.0-1620.0KHz   Speaker   3.5 inch 6,2W   3.5 inch,6   8 3.5 inch   3.5 inch6 3W   Rated power   1.3W   1.4W   1.3W   Antenna   FM/SW: telescopic antenna   AM: built-in ferrite bar antenna   FM/SW: telescopic antenna   AM/LW: built-in ferrite bar antenna   FM/SW: telescopic antenna   AM: built-in ferrite bar antenna   Power input   3 x D size batteries (not included)   AC 220V/110V input   AC:110V 60Hz or AC:220 50Hz    DC:4.5V(UM-1×3)(not included)   AC 220V / 110V    DC:6.0V (UM 1X4)(not included)   AC 110V/220V     DC:4.5V (R20/D 1X3) (not included)   Other functions   High/bass selection   Support USB/TF/SD player   Support LCD display   Support Bluetooth function   SupportUSB/TF Card play   Support Clock,Alarm,Sleep,Record function   Support automatic search and station storage   Support LCD display   Size   220 x 145 x 62mm   212x137x64 mm   250x150x80 mm   288x180x115 mm   Weight   About 746g   About 870g   About 765g   About 827g   Retekess TR618 FM / AM/SW 3 Band Portable Radio with USB TF SD Player Big Speakers High Volume Radio for the elderly   Due to the shortage of chips,TR618 are out of stocks in China ,the stock will arrive January 15.   support  place order in advance, but please help extend the shipment preparation time after complete the payment, thanks caused inconvenience to all customers, please forgive me.   The overall layout is simple and clear, and the operation is simple   Full-band radio with good sound quality   Multiple audio input modes, MP3 playback is powerful   Large knob pointer tuning and volume control, very suitable for elderly habits   Big speakers, high volume, good sound quality   Carry handle, easy to carry   1.Full band Radio:FM/AM/SW/ 3 Band Radio,High sensitivity, you can use it to listen to music, dance square dance and enjoy life.   2.LED display:LED display screen, intimate design, simple and easy to understand, the operation is clear at a glance.   3.Pointer Screen:Large screen pointer design,Manual channel selection,clear channel selection, user-friendly design and simple operation.   4.Knob:The volume adjustment roller design is highly sensitive and easy to operate, suitable for the elderly.   5.Card function:TR618 supports USB / TF / SD card, multiple audio input modes, and powerful MP3 playback function.   6.Headphone jack:If you want to listen to the radio in private, a 3.5mm headphone jack in the unit is a must.Plug-in Aux in a cable(not included)can play music from MP3, MP4, and Mobile Phone.   7.