E29 Red and Black Bluetooth Headset Wireless Headphones Music Running Stereo Bluetooth Earphone for Phone IPad PC Laptop The convenient folding design makes it more flexible to wear, and does not take up space for leisure travel, and you can enjoy the charm of sound at any time. - Features:Name: Gaming headset - Material: ABSVersion: Buildwin 5.0 + EDRTransmission Distance: 10m - Using Time: 20-24 hours - Standby Time: 400 hours - Battery Capacity: 200mAhCharging Time: 4h - Speaker Diameter: 40mm 320Range of Frequency: 20Hz 20KHz