Size:40*60*21mm Weight:19.1g Standard: Bluetooth V4.1 Frequency Range: 2.4-2.8GHZ Operation Class: 2 Mode: HSP/HFP/A2DP/AVRCP/APTX Range: up to 30 feet (10 meters) MP3 Playing Time: 4hs Talk Time: 5hs Charging Time: 1.5h Charge Voltage 3.7V 1.Micro USB charging cable 2.User manual

• Earbuds are magnetically attracted to one another.
• Can connect to 2 devices simultaneously
• Bluetooth 4.1

Earbuds are magnetically attracted to one another.UNDERTONE