Wireless Connectivity: Bluetooth-enabled for use with smartphones, tablets, and laptops.
Touch Controls: Intuitive touch features for play/pause, volume, and call handling.
Noise Cancellation: Basic active noise cancellation (ANC) or passive noise isolation in some models.
Battery Life: Ranges between 4–6 hours on a single charge, with additional charges provided by the case.
Comfort: Ergonomic design with various ear tip sizes for a secure fit.
Since the name "A9 earbuds" is generic, it would help to know the manufacturer or specific brand you're interested in (e.g., TWS A9, or other). Let me know, and I can provide more detailed information or recommendations!