Bluetooth wireless adapter for in-ear monitors with MMCX connectors. You deserve a high-quality in-ear monitor cable that delivers transparent sound with an ultra-wide dynamic range. The BT251-BK for in-ear monitoring meets your needs at a price that fits any budget! The secure over-the-ear and ultra-lightweight design of the BT251-BK allows you to wear it for longer studio, chat, or gaming sessions without feeling any weight above your head. Rotating MMCX connections provide a perfect fit for all ears with lasting comfort. When fully charged, your BT251-BK offers up to 7 hours of music playback. It comes with a high-quality USB charging cable for fast charging on the go. For convenience, a voice prompt for low battery is also integrated.

• Bluetooth: Version 5.0
• Frequency range: 2402 MHz to 2480 MHz
• Number of channels: 79
• Maximum output power: 5 dBm
• Bluetooth range: Up to 10 m in line of sight
• CODEC support: aptX, AAC, SBC
• Call support: CVC 8.0
• Microphone sensitivity: -42 dB (±3 dB) at 1 kHz, 0 dB = 1 V/Pa
• Battery type: Rechargeable lithium battery
• Working time: Up to 7 hours
• Standby time: Up to 150 hours
• Charging time: 1 hour via USB 5 V / 500 mA
• Cable: Shielded, detachable
• Connection: MMCX connector, detachable
• Cable length: 25 cm.