Meze Audio Mono 3.5 MM OFC Balanced Upgrade CableCompatible with: 109 Pro Liric 99 Classics Walnut Gold and Walnut Silver 99 Neo Description: 1. 5 m (4. 9 ft) OFC Silver Plated Soft transparent TPU coating 2. 5 mm TRRS 4. 4 mm TRRRS balanced connection 2 x 3. 5 mm TS connection *This cable is not compatible with 3. 5 mm devices, such as smartphones, laptops, or PC. In order for it to work, a 2. 5 mm TRRS to 3. 5 mm TRS adapter is required.