The Yellowtec Multi-Pattern Microphone with Integrated Digital Recorder is a high quality hand-held microphone with an integrated digital recorder for fast and high-quality interview-recordings. The innovative control processor 'LEA' always guarantees an optimum level without AGC pumping or clipping artifacts. Yellowtec's Twist-Off-Twist-On (TOTO) exchangeable mic heads give you the options you need to perfectly match your recording environment. Whether you require a cardioid, super-cardioid or an omni-directional pickup pattern. Providing a built-in, rechargeable lithium-ion battery and a battery compartment for three standard AA cells, the iXm offers a total operation time of up to 16 hrs. The recording capacity is based on widely available SD and SDHC cards with memory capacity of up to 32GB. An adjustable 'pre-roll' recording buffer with up to 30 seconds never lets you miss the beginning of a conversation.