Features: Twins Pairing: Long press the power button of the pair of 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 "HBQ-i7TWS" on your list, and the led flash will be slowly in blue when connected.Single Pairing: Long press the power button of the earphone until the led flash in blue and red alternately, then it is ready to pair, please turn on the "Bluetooth" on your cellphone and choose "HBQ-i7TWS" on your list, there would be reminding voice from the earphone saying "pairing success". ·Buetooth Version: 4.2 · Frequency: 2.4Ghz · Wireless range: one for about 15m, and a set for about 10m · Receive sensitivity: -90dBm · Battery capacity: 60mAh each · Work time: one for 4 hours, and a set for 3 hours · Standby time: one for 240 hours, and a set for 120 hours · Charging time: about 2 hours · Support one match two, connect two device · Supports A2PD 1.3/HFP 1.6/HSP 1.2/AVRCP 1.6/Dl1.3 · Adopt the advanced CVC6.0 active noise-cancellation · Built-in superior HD microphone, provide clear and loud sound · Voice prompts: Yes · Whether wireless: Yes · Whether microphone: Yes Package Includes: 1.2* Bluetooth Earbuds 2.1*Charging Cable 3.1*User Manual This product size is suitable for adults to wear.
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