Item number:Compact and Powerful: The compact-yet-powerful SoundMates design provides incredible sound and volume, but remains understated in design. Excellent Design: Designed with a sleek minimalist in-ear build, they are rechargeable and come with a protective case which carries an extra 500 mAh capacity of power so you can instantly charge while out and about. Fast Pairing: With easy-pairing Bluetooth calling capabilities, a built-in microphone and high-resolution stereo sound, Tzumi SoundMates are the perfect earbuds for any lifestyle and will provide up to 3 hours of crisp, clear stereo sound. Wireless: Enjoy truly wireless freedom and trust us, you won’t miss the wires. Single Touch Control: Tzumi SoundMates are ergonomic with an in-ear design and built for easy handling during a workout – users can control their calls and play/pause with the touch of a single button. Additional Features: Wireless construction No more tangled wires, Connection: Bluetooth V4.2 Charge: USB Rechargeable 500 mAh, Accessory: Protective Wireless Charging Case, One-Touch Bluetooth Calling, Magnetic Build & In-Ear Design, 1 Full Charge: Up to 3 Hours Playback, Weight: 0.27 lbs. Model: 6655PS.