S92a19386ab954da88b2ea792b9791e36f.jpg Store Home Products Getaway Deals Feedback HIFI Stereo Earphones Bluetooth Headphone Music Headset FM and Support US $ 7 . 7 9 Hifi Stereo Earphones Bluetooth Headphone Music Headset Fm And Support HIFI Stereo Earphones Bluetooth Headphone Music Headset Support TF Card. 1. Bluetooth + MP3 function support stereo music playing, phone calling 2. Support all audio devices that have Bluetooth capability, such as, cell phone ,tablet PC,laptop,computer etc. 3. 3. 5mm audio jack, provides a simple wired connection of a variety of devices without Bluetooth. 4. Allow you to answer or reject phone calls anytime and anywhere. 5. Charged via USB, rechargeable battery, convenient and practical. 6. Playing time up to 8~9 hours, and continue talk time up to 8 hours, standby time up to 250 hours. 7. Good quality, foldable design and adjustable length hinges, very comfortable to wear and easy to carry. 8. Best choice for listening music, watching movie, chatting online etc. 9. with SD card insert,without any bluetooth device,can still enjoy music any time any where. 10. Cool shinnging outlook adds the fashionable feel. Version V4. 0 Frequency 2. 40GHz 2. 48GHz Power 4 dBm, class 2 Effective range 10M Sensitivity 84dBm 0. 1% BER Frequency response 20 Hz 20 KHz S N rate 70 dB Distortion 0. 10% Speaker size 40mm support A2DP 1. 2, AVRCP 1. 0, HSP, HSF 1. 5 Voltage 3. 7VDC (built in 400MAH rechargeable battery) talking time 8~9 hour standby time 250hour charge time 2 2. 5 hour current 40 mA operate temperature 4 ~ +131F( 20 ~ +55C)