High Speed Response System For EP Car Models (01102246-3) T-FHSS SR SIZE: 33.9 mm x 22.3 mm x 11.3 mm 1.33 in x 0.88 in x 0.44 in WEIGHT: 7.2 g 0.25 oz OPERATING VOLTAGE: DC 3.7V-7.4V SR MODE SERVOS MUST BE USED WHEN USING T-FHSS SR MODE. USE OF NORMAL SERVOS MAY CAUSE SERVO TROUBLE NEVER USE THE R334SBS-E IN GP CARS