Mini size, the net weight of the machine is 31g. You can put it in a pocket or hang it around the neck for easy carrying. Built-in 400mAh lithium battery ensures long battery life. Good sensitivity; AIR / FM / AM each band has a stable reception signal. Clear LCD screen (28.5 x 28.5mm) displays frequency, volume, band mode, time, battery symbol, recharge symbol, lock symbol, and sleep symbol. Orange backlit LCD screen designed for convenient evening use. Chip capacity allows storage of 120 radio stations (FM: 50, AM: 20, AIR: 50) with power-off memory function. Preset station options include fully automatic scanning and manual storage. Supports auto power-off function with timer settings: 90, 80, 70, 60, 50, 40, 30, 20, or 10 minutes. Lock button prevents accidental operation. Step setting: 9 / 10KHz MW. Specifications: Model: -767 Frequency: AM: 522-1620 KHz (9KHz) / 520-1710 KHz (10KHz) FM: 76-108 MHz AIR: 118-138 MHz Sensitivity: AM: 20mV/m FM: 8V AIR: 2V Battery capacity: 3.7V 400mAh Color: black Material: plastic Size: 9.1 x 3.9 x 0.9 cm Package Contents: 1 x Multi-Band Radio 1 x Earphone 1 x USB Charging Cable 1 x Lanyard 1 x Carrying Bag 1 x User Manual (English / Chinese) Note: The product does not have an external speaker unlock function. Only the items listed above are included; other items are not included. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3 cm.