The TEAC TN-400BT-X is an analog turntable that combines traditional vinyl playback with modern Bluetooth connectivity. This walnut-finished model features a belt-driven system with a die-cast aluminum platter that supports three speeds: 33 1/3, 45, and 78 RPM. The precise DC motor ensures stable rotation, while the newly developed low-resistance spindle with a stainless steel shaft and brass bearing minimizes friction for consistent speed accuracy. A statically balanced S-shaped aluminum tonearm with counterweight and anti-skating mechanism provides precise groove tracking, compatible with universal cartridges for easy stylus replacement. The built-in phono preamp supports MM cartridges and allows connection to conventional amplifiers without dedicated phono inputs, using a high-quality NJM8080 op-amp chip for minimal distortion. A subsonic filter below 18 Hz prevents excessive low-frequency signals from reaching connected speakers, particularly effective with warped records. The Bluetooth transmission supports high-quality aptX and AAC codecs in addition to standard SBC, enabling wireless listening with compatible headphones or speakers. The robust MDF chassis with aluminum control knobs and vibration-damping rubber feet offers vibration isolation and feedback absorption. Gold-plated RCA connectors and tonearm contacts ensure optimal signal transmission. Included are a felt mat, EP adapter, counterweight, pre-installed Audio-Technica AT95E cartridge, dust cover, RCA audio cable with ground wire, and power supply. Dimensions and weight specifications meet professional audio equipment standards, while the walnut finish adds aesthetic appeal to home audio setups.