Twins, true wireless stereo(TWS) Chipset: CSR Bluetooth Version: 4.2 Frequency: 2.4GHz Wireless range: 10m Receive sensitivity: -90dBm Battery capacity: 75mAh for left and right one Work time: one for 5-6 hours, and a set for 2-3 hours Stand-by time: 120 hours, Charging time: 1 hours Support one match two, connect two device Voice prompt for calling number Voice prompt for power and or off Supports A2DP1.3/HFP1.6/HSP1.2/AVRCP1.6/DI1.3 Adopt the advanced CVC6.0 active noise-cancellation Built-in superior HD microphone, provide clear and loud sound Comes with portable power bank, built-in 700mAh rechargeable li-ion battery, can provide charge for headset anytime; Charging time is about 4 times.
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