On March 22, 2019, we issued an unsecured promissory note to an unaffiliated third-party in the aggregate principal amount of $310,000, in exchange for net proceeds of $300,000, representing an original issue discount of $10,000, which is included in the original principal amount. The note is unsecured and bears interest on the principal amount at a rate of 5% per annum. The note was due on demand at any time after April 10, 2019.

As a result of the issuance of the note, the Company incurred aggregate costs of $10,000 related to the note’s original issue discount. The Company recorded these costs as a note discount and is being amortized over the term of the note.

In April 2019, the Company paid off the balance of $310,000 and accrued interest totaling $1,000. As part of the payment, the Company amortized the remaining debt discount of $10,000.

As of June 30, 2019, the outstanding balance of the note was $0.

On March 29, 2019, we issued an unsecured promissory note to an unaffiliated third-party in the aggregate principal amount of $53,000, in exchange for net proceeds of $50,000, representing an original issue discount of $3,000, which is included in the original principal amount. The note is unsecured and bears interest on the principal amount at a rate of 5% per annum. The note is due on demand at any time after July 10, 2019.

As a result of the issuance of the note, the Company incurred aggregate costs of $3,000 related to the note’s original issue discount. The Company recorded these costs as a note discount and is being amortized over the term of the note.

As of June 30, 2019, the outstanding balance of the note amounted to $53,000. On July 10, 2019, we amended the note, pursuant to which, on July 10, 2019, the aggregate outstanding principal and all accrued and unpaid interest converted into 27,018 shares of our Common Stock, and a warrant to purchase up to 27,018 shares of our Common Stock at an exercise price of $3.44 per share.

On April 2, 2019, we issued an unsecured promissory note to an unaffiliated third-party in the aggregate principal amount of $157,000, in exchange for net proceeds of $150,000, representing an original issue discount of $7,000, which is included in the original principal amount. The note is unsecured and bore interest on the principal amount at a rate of 5% per annum. The note was due demand at any time after July 10, 2019.

As a result of the issuance of the note, the Company incurred aggregate costs of $7,000 related to the note’s original issue discount. The Company recorded these costs as a note discount and is being amortized over the term of the note.

As of June 30, 2019, the outstanding balance of the note amounted to $157,000. On July 10, 2019, we amended the note, pursuant to which, on July 10, 2019, the aggregate outstanding principal and all accrued and unpaid interest converted into 81,178 shares of our Common Stock, and a warrant to purchase up to 81,178 shares of our Common Stock at an exercise price of $3.44 per share.

On April 30, 2019, we issued an unsecured promissory note to an unaffiliated third-party in the aggregate principal amount of $500,000, in exchange for net proceeds of $500,000. The note was unsecured and bore interest on the principal amount at a rate of 5% per annum. The note was due on April 29, 2020.

As of June 30, 2019, the outstanding balance of the note amounted to $500,000. On July 10, 2019, we amended the note, pursuant to which, on July 29, 2019, the aggregate outstanding principal and all accrued and unpaid interest converted into 490,090 shares of our Common Stock.