The AV-LEADER BA12 is a balanced armature in-ear monitor featuring a single balanced armature driver system. It has a frequency response range of 20 Hz to 20 kHz with a nominal impedance of 16Ω ±15% at 1kHz and sensitivity of 106dB ±3dB. The closed-back design incorporates an acoustic seal that provides sound isolation. These specifications enable the BA12 to deliver precise audio reproduction suitable for professional monitoring applications where accurate sound representation is critical. The in-ear design ensures stable positioning and consistent acoustic coupling with the ear canal for reliable monitoring performance in various environments.