App bluetooth intelligent counting adjustable skipping jump rope professional tr

The national standard intelligent skipping rope for primary and middle school students, dedicated for exam training Exquisite rotor design, fully adapt to various materials of diameter 2.5mm-6mm Support free jump, countdown jump, countdown jump, and other modes Bipolar latch Hall Intelligent and accurate counting, sensitive without misjudgment Chinese and English high-definition screen display, aviation-grade lubricating bearings, suspension rotor design, flexible and smooth without arope Bluetooth low energy data transmission Proprietary APP, rich data details, group PK competition, training mode, etc., APP voice broadcast function; No.7 dry battery power supply, extended use for awhole year Product name :Bluetooth jump rope Handle material :ABS Product size :Length 163mm, outer diameter 26mm Rope length :Optional 2.6 meters, 2.8 meters Display mode :LCD display Product weight :About 149g, 152g *Note does not include dry batteries Transmission method :BT Power supply :Two AAA batteries Operating temperature :0 °C ~40 °C Firmware upgrade :OTA upgrade Device support :APP supports Android 5.1 and above IOS 9.0 and above Available colors:White, black, blue, orange, pink, red