Impedance - Typically around 32
ohms.
Bluetooth profiles - Common profiles include A2DP, AVRCP, and HFP.
Battery life - Varies greatly by model and features (e.g., ANC). The Tune 760NC offers up to 35 hours with ANC, the Tune 510BT up to 40 hours, and the Tune 720BT up to 76 hours.
Fast charging - Some models, like the Tune 510BT, offer fast charging, providing 2 hours of music from a 5-minute charge.
Active Noise Cancelling (ANC) - Available on some models, like the Tune 760NC and LIVE 650BTNC.
Voice Assistant - Integration with voice assistants is included in many models.
Built-in microphone - Allows for hands-free calls.
Water Resistance - Some models feature water resistance, often indicated by an IP rating like IPX4