Some tokens in the wallet can be staked. The staking tokens themselves will stay in the wallet, but they cannot be sent. The wallet balance will also show the quantity of tokens that are not staking. To send a staking token, it needs to be unstaked. (See the Unstaking section)
Rewards are distributed on a block-by-block basis. A block is generated approximately every 7 seconds. (You can see the "Reward" in the wallet increasing.) To receive a reward, the user must request the blockchain to "receive the reward". This is because the rewards are not distributed automatically. Please note that the Gas needs to be paid in order to "receive" the reward. Also, when staking or unstaking additional tokens, rewards will automatically be received. Please do not worry when accumulated rewards revert to zero.
To send a staked token, it needs to be unstaked. However, even after unstaking tokens, they will be in the "unstalking request" status for 21 days and where immediate money transfer will not be available. This period where money transfer is not available, is called the "lock period". Please note that any money transfer will be unavailable after unstaking a token that is already staked. The amount of tokens to be unlocked can be selected, but please note that another unstaking will not be available for 21 days.