Description:Feature1. 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 8~10 hours, and continue talk time up to 8 hours, standby time up to 148 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. Rainbow color cat earphones, children's holiday gift earphones.Specifications:SpecoficationBluetooth Version V5.0Frequency 2.40 GHz-2.48 GHzPower 4 dBm, Class 2Effective range 10MSensitivity 105db / 0.1% BerFrequency response 20Hz-20kHzS / n rate 110 dBDistortion 0.10%Speaker size 40mmSupport A2DP 1.2, AVRCP 1.0, HSP, HSF 1.5Voltage 3.7vdc (400 mAh rechargeable battery)Talking time 8 hourMusic time 6 hourStandby time 148 hoursCharging time 1.2 hoursCurrent 20 mAOperate temperature -4 ~ + 131 F (-20 ~ + 55 C)Package Included:1*Headphone1*Charing cable1*Audio cable1*Manual