The WIRELESS Pocket. If you need freedom to move and have a wireless transmiter for your guitar or bass here you have the Wireless pocket. You can put the transmiter pouch in the back tab of your strap. Pocket fits well in 7 cm or 8 cm wide straps only. The elastic ribbon is 6'5 cm width. The WIRELESS Pocket is made of high quality bovine leather. Dimensions: 7,5 cm x 8,5 cm x 2,5 cm. The capacity of the pocket is tested with most of the wireless currently being sold.