Product Feature Wireless Version: V4.2+EDR,Ultra low power consumption Frequency: 2.4GHz Microphones sensitivity: 42Db Range: About 10M (33feet) in clear space Talking Time: one for 5-6 hours, and a set for 4-5hours Standby Time: one for 100 hours, and a set for 60 hours Charging time :about 1-2 hours Earbud: 3.7/65mAh rechargeable Li battery Charging box : 950mAh Charging power: DC5V Compatible phone: compatible with almost all the Android, Apple, Microsoft, Saipan system with Bluetooth mobile phone Package Content: 2* Bluetooth Earbuds 1*USB Charging Cable For Earbuds 1*Charging Case 1*Charging Cable For Case 1*User Manual Notes: 1.Pairing to your device: Long press the multifunctional button of two earphones at the same time until the led flash in blue and red alternately, then double press one of them will have a voice prompt that it is ready to pair, please turn on the "Bluetooth"on your cellphone and choose on your list, and the led flash slowly in blue when connected. (NOTE: when to pair, please pair the 2 earbuds firstly then to your Bluetooth devices).Having any questions,contact with Earfly to deal it. 2.For incoming call,only master earbud has sound,You can press the multifunctional button once to answer the call or press twice to reject.This safety feature allows you to hear the traffic While driving. 3 The earphone would be forced shut down when charging even if they are power ON before charging. 4 When you use the Earbuds at the first time, the working time may not be very long, because we test them before sending them out, That costs some battery. Please don't worry. Charge them and they will work as expected.
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