Behringer MPA40BT-PRO - Specifications - Inputs and Wireless; Input, Level Control, and Equalizer Specs; Wireless System and Bluetooth Data

Channel 1 & 2: XLR / ¼” TRS combo jacks (servo-balanced)
Input impedance (XLR)
Input impedance (¼” TRS) 13kΩ, balanced/54 kΩ, unbalanced
Max. input level 0dBu C
Channel 3: RCA jacks
Input impedance 10kΩ, unbalanced
Max. input level +20dBu
Level Control
Input trim -∞ to +10dB
Equalizer
High ±15dB @ 12kHz
Low ±15dB @ 80 Hz
Wireless System
USB dongle (not included) USB socket accepts signals from 2 independent BEHRINGER ULM mics
Signal indicator LED 2 (green)
Bluetooth**
Frequency Range 2402 MHz ~ 2480 MHz
Channel Number 79
Version Bluetooth spec 3.0 compliant
Output Class 2 type output power
Compatibility Supports A2DP1.2profiles
Dynamic Microphone
Model number DM20
Sensitivity 52dB ±3dB (0dB = 1 V/Par @ 1kHz)
Frequency response 50 Hz – 10kHz
Impedance 550 Ω, ±30%