The Volkano Pebble Series Bluetooth Headphones are a good choice for general promotional purposes, providing recipients with extended audio use.

• Offers up to 75 hours of playback on a single charge from its 800 mAh Li-ion battery, with a charging time of 4.5 to 5 hours.
• Connects to two devices simultaneously using Multipoint Bluetooth V6.0, allowing a wireless range of 10 m.
• Features a Bass Boost function, a built-in microphone for hands-free calls, and support for Google Assistant and Siri.
• Includes a 3.5 mm audio cable for wired listening and a USB-C charging port.
• The twist-and-fold design makes it easy to pack, with dimensions of L:8 x W:20 x H:21 cm.

These Volkano Bluetooth headphones offer practical use and good branding visibility for any general promotional campaign.