Numark's BCM-135 Beatkeeper automatically tracks the beat of up to 4 channels simultaneously. Can be used with phono or line sources, and continuously updates BPM with every beat!

This unit is designed to help you perform beat mixing with greater ease and accuracy. The NumarkBeatkeeper™ works for both CD and record turntable setups and it automatically detects the input signal level so you don't have to fool around with extra switches. Providing you with visual cueing,the Beatkeeper™ will greatly improve the quality and precision of your mixes, especially in loud mixing environments or at gigs with'odd' echoes.

Used but in perfectly working condition