Bluetooth Earbud, CCWorld Wireless Headphones Stereo In-Ear Earpieces TWS Wireless Headset with 2 Wireless Built-in Mic Sport Earphones with Portable Charging Case

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About Bluetooth Earbud, CCWorld Wireless Headphones

Features: 1.Bluetooth version: V4.2 2.Working range: up to 10 meters on open air 3.Frequency: 2.4G 4.Playing time: 4.5 hours 5.Standby time: 150 hours 6.Reception level of sensitivity: < -80dBm Common problems: 1.NOT PAIRING: Long press the multifunctional button of two earphones at the same time until the led flash in blue and red alternately; 2.DEVICE NOT FOUND: 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 "tws-i7" 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) 3.NOT CHARGING: please kindly check if you are charging correctly, if the earphone is completely out of power, it might take longer to be fully charged; 4. VOLUME CONTROL: consider it's so small size, you need to adjust the volume on your smart phone, there is only one key button on the earphone, for power on/off/answer or reject phone calls. Package Include: The pair of earphones 1*User Manual 1*Charging Cable