Silent Brass System for Trumpet

Pickup Mute (SB7X-2): Size: () 82 (L) 139 mm / Weight: 70 g / Built-in microphone: electret condenser microphone / Pickup terminal: Mini phone jack / Muffling degree: -25 dB to -35 dB / Brass Resonance Modeling compatible Personal Studio (STX-2): Size: (W) 70 (D) 20 (H) 98 mm / Weight: 71 g (without batteries) / Connection terminal: MUTE IN / AUX IN / PHONES / Control: Reverb (Rev 1 / Rev 2) / Volume / Built-in Brass Resonance Modeling (works only when connected Pickup Mute is connected) / Power source: AA batteries 2 (alkaline or nickel hydride batteries) (Sold separately) accessories: Dedicated connection cable / Stereo earphone / Japanese Instruction Manual SB7X-2 English Owner's Manual URL (PDF): https://jp.yamaha.com/files/download/otherassets/6/809506/PickupMuteZT07540ENweb.pdf STX-2 English Owner's Manual URL (PDF): https://jp.yamaha.com/files/download/otherassets/9/809529/STX2ZT07550ENweb.pdf