Beurer Speed Box

Optimises running
●Digital data transmission
●Battery-service life trebled: 200 hours training at 20Amps possible
●Simply and safely secured without unfixing the shoe lace
●Transmits the date for the distance run, the actual speed and the calculated target speed
●Can be calibrated to match the individual running style
●Multidimensional 2-D sensor measuring technology
●Waterproof (30 m)
●3 years warranty