Product Description Jetblue Earphones Jetblue Earphones equipped with CSR chip. Using advanced digital signal processing technology allows for the HD sound and voice prompt. Intelligent noise reduction. Waterproof IPX3. It can connect 2 Smarpthones at the same time and supports 4 language options. Used with Apple or Xiaomi cell phones allows for the Power Display. Specifications Bluetooth version: V4.0 Support: A2DP, Headset and Hands-stereo Talk time: 8 hours Standby time: 220 hours Operation range: 10 meters Charging time: 2 hours Charging voltageL DC 5V Giftbox sizeL 185*90*45mm Weight: 93g Affordable earphones for enjoying your favorite show, series or movies. Use them to talk or listen to the music while running or exercising, or when you just wat to layy down and have some relaxing time.