This PTron bluetooth headset excellent sound quality, with full supported mic comfortable stay in your ears. PTron Avento bluetooth earphone is a unique design thats truly part of the next generation. Stereo sound quality that is perfect for music lovers. Easy charging with your charger compatible with your smartphone. Powerful battery backup that would allow you to use this latestone wireless headset without charging it frequently. This Wireless headphones lightweight design. PTron Avento Bluetooth Headphones In-Ear Wireless Headset For All Smartphones (Black) Specification: Type : Avento bluetooth In-ear earphone Bluetooth : v4.2 (Jieli 6907) Transmission Range : 10 m Driver Size : 14.2 mm Frequency Response : 20Hz-20KHz Speaker Impedance : 32 ohms Speaker Sensitivity : 105±3 dB Mic Sensitivity : -40+-2 dB Input Current : DC 5V Battery : 70mAh Re-chargeable Li-polymer Talk-time : 3.5 Hours Playback Time : 3.5 Hours Standby Time : 50 Hours Charging Time : 1.5 Hours Compatible for iOS Smartphones This PTron bluetooth headset excellent sound quality, with full supported mic comfortable stay in your ears. PTron Avento bluetooth earphone is a unique design thats truly part of the next generation. Stereo sound quality that is perfect for music lovers. Easy charging with your charger compatible with your smartphone. Powerful battery backup that would allow you to use this latestone wireless headset without charging it frequently. This Wireless headphones lightweight design. Bluetooth pairing: Hold down the function keys about 5 seconds to red and blue light flashing. Set the phone to search for bluetooth devices. When the phone to search to headphones search to the list to determine the headphones. If the pairing is successful, will flash blue lights, at this point in the standby mode and ready to dail/accept the call. Charging instruction: Insert the charger into the power switch. The charging indicator light shows red, when fully charged when the red light goes out, and the light shows blue. Disclaimer: Product colour/texture may slightly vary due to photographic lighting sources or your monitor settings or mobile settings. The properties shown in the images are not part of this product. Brand PTron SKU 100358609_NP-1020640192