Mini size, the net weight of the machine is 31g. You can put it in a pocket, or hang it on the neck, easy to carry. Built-in 400mAh lithium battery ensures long battery life. Good sensitivity, AIR / FM / AM each band has a stable reception signal. Large clear LCD screen (the size of the LCD screen is 28.5x28.5mm) shows the point of frequency / volume / band mode / time / battery symbol / recharge symbol / lock symbol / sleep symbol. Orange backlit LCD screen designed, it is convenient for evening use. Large chip capacity, it can store 120 radio stations (FM band: 50 / AM band: 20 / air band: 50) and have a power off memory function. The preset station has two ways: 1 fully automatic scanning storage station 2 manual storage station. Supports auto power off function, 90-80-70-60-50-40-30-20-10 minutes can be set. The lock button prevents errors. Step setting 9 / 10KHZ MW. Specifications: Brand: HanRongDa Model: HRD-767 Frequency: AM: 522-1620 KHz (9KHz) / 520-1710KHz (10KHz) FM: 76-108MHz AIR: 118-138MHz Sensitivity: AM: less than or equal to 20mv / m FM: 8Uv AIR: 2uV Battery capacity: 3.7V 400mAh Colour: black Material: plastic Size: 9.1*3.9*0.9cm Package Contents: 1 * Multi-Band Radio 1 * Earphone 1 * USB Charging Cable 1 * Lanyard 1 * Carrying Bag 1 * User Manual (English / Chinese) Note: the product does not have an external speaker unlock function.