Model Number:BP38 BP39 BP40 BP1013 BP537 -008 Item Type:Batteries Compatible Model:for GMR1038 GMR1038-2 GMR1038-2CK GMR1048 GMR1048-2CK Compatible Product:for GMRS380 GMRS3802 GMRS380-2 GMRS522 GMRS540 Type:Ni- Rechargeable Battery Capacity:800mAh Dual Band,Dual Frequency,Dual Display and Dual Standby Supports transmission VHFandUHF,UHFandUHF or VHFandVHF working modes Digital FM radio (Automatic tuning and storing,radio frequency display) High or Low power selection Wide or Narrow Bandwidth selection (25KHz or 12.5KHz) Channel Name edit and display 105 groups D.C.S or 50 groups CTCSS Stopwatch Function Low-voltage voice prompt Busy Channel Lockout Transmit Over Timer Multi step frequency:5K or 6.25K or 10K or 12.5K or 25K or 50K or 100K Keyboard lock (Auto or Manual) Multiple scan modes Wire clone function Bright flashlight illumination Programmable by computer SOS Function 1750Hz tone DTMF Encoding Function transmission English voice guide Colour:Black material:plastic Package Contents: 1x battery Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.