Built Frequency 2.4 GHz technology insideBuilt Digital and Analog model technology insideBuilt Double high‎-quality Motor for mega vibrationExternal double AAA batteries power designed‎,‎ Endurance capacity of more than 10 hours ‎(‎battery not included‎)‎Lower voltage indication‎:‎ In order to stable playing game‎,‎ controller will be automatically shut down the motor when lower voltageSupport Multi‎-loop signal‎:‎ No mutual interference when simultaneous control ‎(‎Max accommodation 20 sets controller‎)‎Support operating distance of up to 8‎-10 meter ‎(‎max 14 meter‎)‎