Product model: LS-T20LHandle Material: ABS + Acrylic + MetalProduct size: length 170mm, outer diameter 22mmRope length: 2.8 metersDisplay mode: LCD displayProduct weight: about 170gTransmission method: BTPower supply: rechargeable lithium batteryEndurance: continuous rope skipping time> 20 hours, standby> 30 daysWorking temperature: 0 ° C ~ 40 ° CFirmware upgrade: OTA upgradeDevice support: APP supports Android 5.1 and above, IOS 9.0 and aboveTime to market: 2019.05