Actpe Sports Wireless Bluetoth 4.1 Stereo Earbuds Earphones Earpiece Headset Headphones with Microphone for Outdoor Running Gym Cycling Work out; for iPhone Samsung LG Android Smartphone, Red Easy to carry. more humanized design, Easy operations, simplify the steps easy to use. Voice control, Say "Yes" or "No", you can control call phone. Memory pairing, Echo cancellation. Same time Connect Multiple bluetooth devices. Bluetoth Version 4.1, CSR Chip 8635. Compatible all Bluetooth digital devices. CVC 6.0 Noise Reduction. Wireless Frequency: 2.4~2.8GHz High performance stereo Bluetooth earphone headphone. Battery supply: Built-in rechargeable lithium battery.