Maximum transmission range: 2.40 ~ 2.48 Ghz Distance : whithin 10m Weight : 25(g) Charging time : 3~5 hours Offer Multipairing Internal Two Microphone make voice sound so clear while on phone calling Playing Time : 10.5 Hours Phone Calling Time : 10.5 Hours

• So light weight 25 Gram
• Hands free call fuction(Internal Two Microphone make clear Voice sound)
• Neck Band Type
• Offer Multi Paring
• Bluetooth 4.1

So light weight 25 GramI River