● Wireless cycle computer with 46 functions 
● Echo-a3 measures speed, altitude gain & loss, altitude ascent, 
   altitude descent and heart rate. It's great for mountain bike riders.
● The function groups make the operation much more easily.
● It calculates with the input of user data for precise record.
● With low battery indicator
● LCD brightness adjustable
● Speed transmitter : with LED indicator of battery power 
● Waterproof

BIKE FUNCTIONS
Speed (Current / Maximum / Average)
Trip distance / Odometer
Total odometer (Bike1+Bike2)
Trip riding time / Total riding time
Total riding time (Bike1+Bike2)
Speed pacer / Distance per day
ALTIMETER FUNCTIONS
Altitude (Current / Maximum / Minimum)
Trip altitude gain / Total altitude gain
Total altitude gain (Bike1+Bike2)
Trip altitude loss / Total altitude loss
Total altitude loss (Bike1+Bike2)
Altitude ascent (Current / Maximum / Average)
Altitude descent (Current / Maximum / Average)
HEART RATE FUNCTIONS
Heart rate (Current / Maximum / Average)
Target zone setting / Time (in / over) target zone
Trip Calory consumption
Total calory consumption
Total calory consumption (Bike1+Bike2)
Calory consumption per hour
Heart rate intensity
Target zone pacer
BAROMETER
TEMPERATURE
Temperature (Current / Maximum / Minimum)
OTHERS
12H/24H clock / Calendar
Dual wheel size memory
EL backlight