With a secure fit, ultra-lightweight design, the Grundig earbuds are designed for wherever you go. The Grundig Earbuds come with a fast-charging polymer lithium battery that allows you to charge it 1-2 hours and enjoy 2 hours of music playback. The battery can also be on standby for 60 hours. > Bluetooth® 5.0 wireless: compatible with all Apple and Android devices > Max. transmission distance: outdoor straight-line: 10metres > incl. polymer lithium battery: 40mAh > Charging capacity: 350mAh > Music playback time: 2 hours > Talk time: 80 minutes > Standby time: 60 hours > Charging time: 1 - 2 hours