Suction-cups with embedded acoustic transmitters (“jawphones”) can be used to deliver sound to odontocetes while out of water. When used for electrophysiological hearing tests, both jawphone and recording electrode location are important considerations. This study examined bottlenose dolphin auditory brainstem response (ABR) patterns across jawphone and electrode location. Stimuli were tonebursts with center frequencies of 28–160 kHz. When recorded using an electrode immediately behind the blowhole, ABR peak amplitudes were generally highest when the jawphone was placed on the middle of the mandible and lowest when placed near the tip of the rostrum. However, responses were comparable between the middle and posterior mandible when recorded with an electrode near the auditory meatus. These patterns were consistent across frequency, suggesting that ABRs recorded at the blowhole likely contain more binaural contributions than those recorded at the meatus. While blowhole electrode placements with a jawphone on the middle of the mandible provide the highest signal-to-noise ratios, they may not provide ear-specific information at suprathreshold stimulus levels, which could lead to confusion regarding the optimal location for transmitting sound to the ear. [Funded by US Fleet Forces Command.]