Yamaha SB-5X SILENT Brass System for Trombone

Specs Pickup Mute™ Model PM5X Dimensions (Diameter x Length) 129 x 220mm (5-1/16" x 8-11/16") Weight 155g (5.5 oz.) Internal Microphone Electric condenser microphone Pickup Output Jack Mini phone jack Nominal Level -25dB～-35dB Brass Resonance Modeling™ Yes Personal Studio™ Model STX Dimensions (W x D x H) 70 x 20 x 98mm Weight 69g (2.4 oz) without batteries Jacks and Terminals MUTE IN, AUX IN, PHONES Control VOL. (volume), Reverb type, Power ON/OFF Brass Resonance Modeling™ Yes (It behaves correctly only when compatible X-series Pickup Mute™ is connected to Personal Studio™.) Power Supply AA alkaline or nickel-metal hydride batteries x 2 (3V DC) Accessories Included Accessories Cable, Stereo Earphones, Owner’s Manual Please Note In some cases, the Pickup Mute™ may not fit instruments that have significantly different bell diameters and/or shapes. Please check before purchasing. The Pickup Mute™ is not compatible with Marching Mellophones, Marching French Horns, Alto (Tenor) Horns, or Baritones. The SILENT Brass™ mute for Trombone (SB5X) and the Pickup Mute™ (PM5X) are not compatible with Alto Trombones or Bass Trombones. The SILENT Brass™ mutes for Flugelhorn (SB6X) and the Pickup Mute (PM6X) protrudes 3-4 cm from the bell. The Pickup Mute™ cannot be stored in the cases of French Horns with detachable bells. For information on compatibility with Yamaha brass instruments and cases please refer to the "Compatibility Table". Always remove the Pickup Mute™ from the instrument if the instrument is to be stored for an extended period of time. The PHONES jack on the Personal Studio™ STX is for stereo output (do not use it for mono output). Do not connect an earphone with microphone headset or similar device that has a 4-contact plug to the Personal Studio™. The use of such a device can result in severely degraded balance and sound. Do not connect the PHONE jack to a microphone input jack (or combined mic/line input) on a computer, etc., that also supplies power to the connected device (plug-in power). If you want to use the jack as an external output, do not connect anything to the AUX IN jack. Please note that Brass Resonance Modeling™ is only available when the STX Personal Studio™ is combined with a PM3X/5X/6X/7X Pickup Mute™. It is not available with any other Personal Studio™ or Pickup Mute™ models. AA batteries are not supplied. Please purchase separately.