Featuring a custom-designed balanced armature driver for crisper highs and a dynamic driver for mids and lows, the drivers utilize separate amplifiers for a full sound while listening to your smartphone, tablet, laptop, or MP3 player. The aptX Adaptive codec offers you high-quality audio streaming from supported devices. The rechargeable lithium-ion battery can last for eight hours on a single charge and a 15-minute quick charge gives you two hours of audio playback. Constructed from soft, coated silicone and rubber, the PI3 are comfortable to wear. In addition, three pairs of eartips, a headphone pouch, and a USB Type-C charging cable are included. A custom-designed balanced armature driver delivers crisp highs, while a second dynamic driver provides mid- and low-frequency sound. Each driver is powered by its own amplifier for a fuller sound. No matter what you’re listening to, watching, or playing, hear what you were meant to hear. The aptX Adaptive codec gives you natural audio even in challenging RF environments. A full charge provides up to eight hours of listening time. A quick charge gives you two hours of audio playback in 15 minutes.