• 2-in-1 transmitter and receiver with Bluetooth 5.0 technology and CSR 8675 chip for a stable connection. • Compatible with aptX HD and aptX Low Latency for synchronized high-definition audio. • Versatile connectivity through SPDIF optical fiber input and output, RCA, and 3.5 mm AUX input. • Dual link function that allows pairing two headphones or speakers simultaneously in TX mode. • 400 mAh rechargeable battery with up to 17 hours of autonomy and fast charging in 2 hours. • Includes optical audio cable, AUX cable, RCA adapter, and micro USB charging cable.