3pcs Silver Copper Trumpet Slide Finger Ring, Trumpet Valve Pull Ring with 3 Screws, 3 Inch Length Trumpet Slide Finger Ring, Trumpet Accessories Compatible with Yamaha Trumpet electronics_July2024_update if hold AA or EN-EL15

if hold AA or EN-EL15 batteries only for 7FPS shooting

provides 10 f-stop reductions

Wireless Presenter with finger ring design

High quality for durable and long- lasting use3

provide added range up to 120 miles and maximum signal reception for more channels even you are far away from broadcast towers

3pcs Silver Copper Trumpet Slide Finger Ring, Trumpet Valve Pull Ring with 3 Screws, 3 Inch Length Trumpet Slide Finger Ring, Trumpet Accessories Compatible with Yamaha Trumpet electronics_July2024_update if hold AA or EN-EL153pcs Silver Copper Trumpet Slide Finger Ring, Trumpet Valve Pull Ring with 3 Screws, 3 Inch Length Trumpet Slide Finger Ring, Trumpet Accessories Compatible with Yamaha Trumpet Product Features You will get 3 x Trumpet Slide Finger Ring With Screws. Colour: Silver, Width: 25mm 1inch, Total length: 75mm 3inch, enough for you to use for a long time or share with classmates or friends. The Trumpet Slide Finger Ring is made of high quality copper, sturdy