This Bundle From Teds Electronics Includes: Sennheiser HD 660S2 Wired Over-Ear Headphones, JLab Play Gaming Wireless Bluetooth Earbuds - Black/Blue Enhanced Deep Bass and Refined Acoustics The HD 660S2 is engineered with optimized airflow and a more compliant transducer surround to extend low-frequency performance. Extended High-Resolution Audio Performance Equipped with high-performance 38 mm dynamic drivers, these headphones deliver detailed and balanced sound across a wide 8 Hz 41.5 kHz frequency range. Premium Comfort and Flexible Connectivity Designed for long listening sessions, the headphones feature soft velour ear pads, an adjustable headband, and a lightweight build of about 260 g for comfortable wear. Open-Back Audiophile Design This design enhances spatial imaging and depth, making music feel more realistic and immersive. It is especially ideal for critical listening, mixing, and high-fidelity home audio where clarity and accurate instrument placement are essential.