Feature: 1. Easy to Use: Mini digital radio supports MP3 playback format. Easy to operate with the keypad. Pocket size, easy to carry. Specification: Item Type: Digital Radio Material: ABS Size: Approx. 88x46x18mm / 3.46x1.81x0.71in Frequency Range: MW:522-1620 KHZ9KHZ) 520-1710KHZ(10KHZ) SW: 4.75-21.85MHZ FM:76-108 MHZ Sensitivity: MW:90dB SW:35dB FM:18dB SNR: MW:20dB SW: 30dB FM: 45dB Built in Battery Capacity: 500mAh 3.7 V(Include) External Power Source: DC 5V Minimum Working Voltage: 3.3V Maximum Operating Current: 350mA External Earbuds: Diameter 3.5mm, 32 x 2 Speaker: Diameter 28mm/1.10in 6 2W Memory Card Play Format: MP3 FM Stereo Crosstalk: 35dB Volume Output Power: 1.5W Number of Storage Units: 120 (FM, Shortwave Can Dtore 50 Each, Shortwave Store 20) Package List:1 x Digital Radio 1 x Earphone1 x Charging Cable2 x Ear Covers1 x Storage Bag1 x Manual Note:Please allow for some errors in manual measurements. High Sensitivity: Pocket digital radio has high sensitivity reception and stable reception signal in each band. Digital Display: Mini radio has a 1.18 inch LCD digital display, which can show volume adjustment, FM range, band mode, track order, track play time, battery usage, etc. White Backlight: The pocket digital radio has white backlight, which is convenient for using the radio in the dark. Large Chip Capacity and Automatic Power On: Digital radio has a large chip capacity, capable of storing 120 radio stations; automatic power on function can be set. Automatic Station Search and Storage: Digital radio can search and store stations fully automatically, with 9KHZ 10KHZ medium wave step value, which can be adjusted by yourself. High Sensitivity: Pocket digital radio has high sensitivity reception and stable reception signal in each band. Digital Display: Mini radio has a 1.18 inch LCD digital display, which can show volume adjustment, FM range, band mode, track order, track play time, battery usage, etc. White Backlight: The pocket digital radio has white backlight, which is convenient for using the radio in the dark. Large Chip Capacity and Automatic Power On: Digital radio has a large chip capacity, capable of storing 120 radio stations; automatic power on function can be set. Automatic Station Search and Storage: Digital radio can search and store stations fully automatically, with 9KHZ 10KHZ medium wave step value, which can be adjusted by yourself.