The JBL True Wireless In-Ear Headphones Model Free 11, also known as JBL Free II, offer the following features:

• Audio: JBL Signature Sound with 5.6mm dynamic drivers delivering clear and balanced audio.

• Connectivity: Bluetooth 5.0 for reliable wireless connection with support for A2DP, AVRCP, and HFP profiles.

• Battery Life: Up to 6 hours of continuous playback on earbuds plus 18 hours additional charge from the case, totaling 24 hours.

• Charging: USB Type-C charging case with approximately 2 hours for full charge.

• Controls: Touch controls on earbuds for music playback, call management, and voice assistant activation.

• Voice Assistant: Compatible with Google Assistant and Siri.

• Design: Ergonomic in-ear design with three ear tip sizes for secure and comfortable fit.

• Water Resistance: IPX4 rating, splash proof for protection against sweat and light rain.

• Weight: Earbuds weigh about 9.6 g each; charging case weighs about 52 g.

• Features: Fast Pair for instant pairing with Android devices, Dual Connect for independent earbud use, hands-free calling.

• Frequency Response: 20 Hz – 20 kHz.
  

These earbuds provide great sound, convenient controls, and decent battery life, making them suitable for everyday use including workouts and calls.