The X9 uses 12.4mm composite drivers and got Golden Ear Product Certification from China’s Electronic Audio Industry Association. They have 49dB active noise cancellation and spatial audio effects.
Each earbud weighs 5.3 grams and has dual microphones with AI noise reduction for calls. Users can pick from four sound settings: Powerful Bass, Warm Vocals, Classical Soundtrack, and Bright High Notes.
Battery life is the main feature. Each earbud has a 45mAh battery that lasts 9 hours. The 500mAh charging case gives 42 hours total. A 10-minute charge provides 3 hours of listening time through the USB-C port.
The earbuds connect with Bluetooth 5.3 and support SBC and AAC codecs. They work with Google Fast Pair and can connect to two devices at once. Touch controls handle music and calls. The earbuds have an IP54 rating, so they resist dust and water splashes.
Other features include Bluetooth ring search to find lost earbuds and automatic connection when you open the case. The earbuds come in blue and white colors.