AYY Bluetooth Headphones, [20 hours playtime] Wireless Foldable Neckband Earphone with Mic Sweatproof Sports Headphone Noise Canceling Stereo Bluetooth Headset with Retractable Earbuds (Black)
Foldable Body & Retractable Earbuds -- Creative foldable design provides maximum flexibility, portability and durability; retractable earbuds allow you much easy to adjust this cable length just by one press.
Long Battery Life -- Supports up to 18 hours music time, 20 hours talk time, and 400 hours standby time with every 2.5 hours charging; No worry for battery shortage!
HD Hi-Fi Sound -- CVC6.0 noise cancellation technology blocks the buzzing/humming noise around; offers Hi-Fi stereo sound with super bass, you can enjoy crystal clear music and calls everywhere.
Bluetooth 4.1 -- Latest Bluetooth 4.1 ensures you more faster and stable signal connection and transmission; Capable of quicker paring with all Bluetooth-enabled devices.
Vibration and Voice Prompt -- Vibration reminder for incoming calls, power on/off, Bluetooth connected, battery low alert; totally free your hands without missing any calls while you are doing exercise or even in a noisy place.