Gb - 20 Technical specifications GuaranteeNUM’AXES guarantees the product against production defects for 2 years after purchase.All postage and packing charges will be the purchaser’s sole responsibility. Guarantee conditions1. The guarantee will be valid only if the proof of purchase (invoice or sales receipt) withoutcancellation is submitted to the distributor or to NUM’AXES. The guarantee is limited to theoriginal purchaser.2. This guarantee does not cover the following:- changing the battery- changing the strap- direct or indirect risks incurred when sending the article back to the distributor or to NUM’AXES- damage to the article caused by:- negligence or incorrect use (ex. bites, breakage, cracking)- use contrary to the instructions or not envisioned therein- repairs performed by unauthorized persons- loss or theftPower 1 Lithium 3-V CR2 batteryBattery life approximately 3 monthsBattery waste indicator light and sound indicatorTightness waterproofOperating modes 4Dimensions 60 mm x 35 mm x 37 mmWeight (with battery) 77 g (without strap)Strap adjustable to neck sizes from 17 cm to 55 cmTemperature limitations between – 20°C and + 40°Ccel-B.indd 20 22/01/201