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Amazon Description:
Wireless Charging Function & Type-C Charging Cable Fast Charging - The A9 earbuds come with wireless charging function and the package comes with a Type-C quick charging cable.
IPX7 Waterproof Function - A9 wireless earbuds add newly developed nano waterproof material, sweat from exercise can't get inside the earphones.
Auto Pairing Function - You just need to link the first time, and then just open the headset charging compartment to automatically connect to the device (the headset can only be connected to one device, if you need to connect to a new device, please turn off the original device Bluetooth function)
80 Hours Playtime with Dual Power Display - With a respectable battery life, Bluetooth headphones provide about 10 hours playback per charge. The included charging case extends the usage time to 80 hours by providing multiple additional charges on the go. Besides, the intuitive LED display keeps track of the case’s remaining power in real-time and earbuds’ charging status, so you are never caught off guard by low battery through workout or daily routine. Say goodbye to battery anxiety.