SIM900 Arduino Quadband GSM/GPRS Shield Wireless Extension Board Module+Mega 2560 R3 ATmega2560-16AU Relaxers & Massagers 1 x Helmet mount kit

1 x Helmet mount kit set

Unit Strap/Clip Strap included Packing List 1 * Diving flashlight

Surprising picture quality with resolution supports up to 4K UHD

Form Color Grey Model N/A Quantity 1 DX

SIM900 Arduino Quadband GSM/GPRS Shield Wireless Extension Board Module+Mega 2560 R3 ATmega2560-16AU Relaxers & Massagers 1 x Helmet mount kitBrand chuangzhuo Model SIM900+M2560 Quantity 1 Piece Color Black Material CCL+PCB board Chipset ATmega2560 16AU English Manual Spec No Other Features Arduino Mega is an ATmega2560 16AU as the core of microcontroller development board, itself has 54 set of digital I O input output end (14 groups can do PWM output), 16 groups of simulated than the input, four groups of UART (hardware serial ports), use the 16 MHz crystal oscillator. Packing List 1 x