To ensure that transactions are processed on the Ethereum network (blockchain), outgoing transfers sent to external Ethereum wallet addresses are charged a "mining" or "network" fee. This fee is paid directly to the miners, Wyre does not profit from sending or receiving Ethereum .
Wyre has a dynamic miner fee structure which means the fee changes according to the market conditions.
Wyre passes this miner fee onto users to complete their transfers. Currently, this fee is set to ETH 0.001*, no matter the transfer amount.
You can always check the miner fee on the Wyre dashboard: