AKG C411PP Condenser Pickup Microphone w/ XLRWeighing only 18 grams (0. 6 oz.), this ultra light condenser pickup is ideal for acoustic guitar, mandolin, violin, and most other stringed instruments. The C 411 will give a clear and uncolored sound without changing the balance of the instrument. Attaching the C 411 on or near the bridge or anywhere else on the instrument is easy with the included non marring, reusable, solventfree adhesive compound.