Specifications: * Bluetooth version: BT 4.0* Bluetooth mode: Hands free/ Headset profile* Transmission Distance: 10m* Radio frequency: 2.40GHz* Power charge: AC input 110-240V DC output 5V* Music time: About 6 hours* Talking time: About 10 hours* Standby time: About 200 hours* Package size: 17 x 14.2 x 4cm Package list:1 x S9 Wireless Earbuds1 x USB Charger Cable1 x User manual2 x EarplugsJUE