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Latest price update (UTC time):
Connecting interface: Type-C, Driver unit: 9.2mm, Frequency response: 20-20000Hz, Impedance: 32ohms, Sensitivity: 97dB, Battery Capacity(mAh): 115mAh Li-ion Battery
Price history and price alert
Check out price history chart (for all/most countries) for ONEPLUS BT31B Bluetooth Sports Earphones.
Price records source(s): Gearbest
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You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).