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WEATHER RADIOS
SG Model DT-400W DT-800 MMR-88 / SG-112 MMR-99 PR-D12 PR-D4W PR-D9W
FM Frequency (MHz) 87.5–108 87.5–108 87.5–108 87.5–108 87.5–108 87.5–108 87.5–108
TUNER FM RDS/BDS - PS / CT - PS / CT CT - -
AM / MW Frequency (kHz) 522–1710 (9k) / 520–1710 (10k) 522–1710 (9k) / 520–1710 (10k) 522–1710 (9k) / 520–1710 (10k) 520–1710 (10k) 520–1710 (10k) 522–1710 (9k) / 520–1710 (10k) 520–1710 (10k)
Weather Band Channel 1–7 (162.40-162.55 MHz) 1–7 (162.40-162.55 MHz) 1–7 (162.40-162.55 MHz) - - 1–7 (162.40-162.55 MHz) 1–7 (162.40-162.55 MHz)
Memory Presets 19 (AM / FM Mixed) 40 (20 AM / 20 FM) 19 (AM / FM Mixed) 50 (20 AM / 20 FM/ 10 WX) 40 (20 AM / 20 FM) 25 (10 AM / 10 FM / 5 WX) 19 (AM / FM Mixed)
TUNING
Rotary Tuning - - - - O - -
Auto Tuning System / Seek Tuning O O O O O O O
Bluetooth - - - O - - -
MEDIA
Aux-in - - - O - O -
Version - - - 5 - - -
Codec - - - SBC - - -
BLUETOOTH
AVRCP - - - Play / Pause / Previous / Next / Rewind / Forward - - -
A2DP - - - O - - -
Real Time - Radio - Radio Radio - -
Alarm - 1 Set - 1 Set 2 Sets 2 Sets 2 Sets
Timer - - - - - - O
CLOCK HWS (Humane Wake System) - - - O O O O
Snooze - O - O O O O
Sleep Timer - - - O O O O
Auto Shut Off O O O O - - -
Type LCD LCD LCD LCD LCD LCD LCD
Size (mm) 34 x 16 46 x 18 40 x 19.5 59 x 26 51 x 38.7 72 x 34 51 x 14.5
Size (in) 1.34 x 0.63 1.81 x 0.71 4.65 x 1.02 2.32 x 1.02 2.01 x 1.52 2.83 x 1.34 2.01 x 0.57
Graphic / Character Type Segment Segment Segment Segment Segment Segment Segment
Backlight O O O O O O O
DISPLAY
Dimmer - - - - - - O
Battery Level Indicator O O O O - O O
LED Tuning Indicator - - O - - - -
LED Low Battery Indicator - - O - - - -
LED Charging Indicator - - O O O - O
Speaker Size 35mm / 1.38" 28mm / 1.1" 40mm / 1.57" 57mm / 2.25" 76mm / 3" 76mm / 3" 57mm / 2.25"
Speaker Impedance 4 ohm 8 ohm 8 ohm 4 ohm 8 ohm 4 ohm 8 ohm
Speaker Output (AC / DC Powered) - 0.1W 0.4W 2W 3W 0.8W 0.5W
Speaker Output (Battery Powered) 0.07W 0.15W 0.4W 1.5W 3W 0.8W 0.25W
Speaker Output (Max) 0.4W 0.5W 1W 5W 3W 3W 2W
AUDIO
Amplifier - - Class AB Class AB/D Class AB Class AB Class AB
Earphones 1mW x 2 1mW x 2 1.5mW x 2 1mW x 2 1.5mW x 2 3mW x 2 5mW x 2
Stereo Earphones Earphones Earphones Earphones Earphones Earphones Earphones
Dynamic Bass Boost O O - - - - -
Loudness - - - Always on - - -
OTHER FEATURE Dust & Water Resistance - - - IP55 - - -
Flashlight - - O O - - -
Hand Crank Power Mechanism - - O O - - -
OTHER Solar Power Panel - - O O - - -
FEATURE Siren - - O O - - -
Software Upgradability - - - - USB port - -
Lock Switch O O - - - - O
External FM Antenna - - Telescopic Antenna Telescopic Antenna - Telescopic Antenna Telescopic Antenna
Aux-in (3.5mm) - - - O - O -
Earphone (3.5mm) O O O O O O O
I/O USB Socket Type - USB Micro-B USB Type-C / USB Type-A USB Type-C / USB Type-A USB Micro-B - -
SOCKET USB Socket DC In - O O O - - -
USB Socket DC Out - - O O - - -
External Antenna Port 3.5mm Headphone FM Antenna Jack 3.5mm Headphone FM Antenna Jack - - - - -
AC / DC - DC-in 5V/0.5A DC-in 5V/0.5A DC-in 5V/2.4A DC-in 9V/1.2A DC-in 6V/0.4A DC-in 9V/0.5A
Battery 2x AA 1.5V 2x AA 1.5V 18350 Li-Ion Battery 3.7V/850mAh 18650 Li-Ion Battery 3.7V/2600mAh 4 x AA 1.5V 4 x D 1.5V 4 x AA 1.5V
POWER Battery Life (Speaker playback time on built-in battery) - - 14 hr - TBC - -
SUPPLY
Battery Life (Earphone playback time on built-in battery) - - - - TBC - -
Battery Rechargeability - O O O O - O
Power Adapter - O - - O O O
Charging Cable - - USB Type-A to Type-C USB Type-A to Type-C - - -
ACCESSORIES Earphones O O - - - - -
External Antenna FM Wire Antenna FM Wire Antenna - - - - -
Hand Strap - - O O - - -
Others Belt Clip Belt Clip - - - - -
Width (mm) 64 68.2 152.2 202.8 224.9 236.8 161.5
Height (mm) 106.5 115.4 84.9 113.7 135.1 137.4 107
Depth (mm) 20.6 31.4 69 89.4 53.3 64.4 39
Weight (g) 105 126 377 909.5 794 847 336
DIMENSIONS
Width (inch) 2.52 2.69 5.99 7.98 8.85 9.32 6.36
Height (inch) 4.19 4.54 3.34 4.48 5.32 5.41 4.21
Depth (inch) 0.81 1.24 2.72 3.52 2.1 2.54 1.54
Weight (lb) 0.23 0.28 0.83 2.01 1.75 1.87 0.74
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