SIM900 GPRS/gsm Shield Development Board Quad Band Module with Antenna + gift

【GSM Module GPRS SIM900】 with four bands 850/900/1800/1900 MHz (GSM and GPRS available worldwide) 【Support for calls and SMS】 (connections of headphones and microphones available) - the communication is made using AT commands 【Excellent Compatibility】 Controlled through uno compatible (100% compatible pin) and MEGA2560 and easy programming through open-source libraries 【Fast delivery】 Fast and high quality delivery from Spain buying at TECNOIOT 【Important note】 Be careful: Insert the SIM card into the SIM card holder by gently pressing the SIM card holder down! Do not force upwards, otherwise you may damage the card slot! If the card slot is damaged, please contact us, we will provide the solution.