Purchase for my wife who hounds for 1 year (10km and 1 semi) Appraisal: - Battery life: INSUFFICIENT clear (my wife coursing on Sunday). This is far too restrictive FRANCHEMENT - Aesthetic very well - Use keys to validate and record the end of its course, not very intuitive - Obligation to go through a USB port for data backup during that modern technology offers no WiFi or Bluetooth. Finally; bad quality / price ratio Aim at the upper range if your purse allows.