Audio-Technica ATH-S220BT Wireless On-Ear Headphones (White) - Manual (Page 27)

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Specifications
Headphones
Type Closed-back dynamic
Driver 40 mm
Sensitivity 105 dB/mW
Frequency response 5 to 32,000 Hz
Impedance 32 ohms
Microphone (headphones)
Type Electret condenser
Polar pattern Omnidirectional
Sensitivity -42 dB (1 V/Pa, at 1 kHz)
Frequency response 50 to 4,000 Hz
Microphone (cable)
Type Electret condenser
Polar pattern Omnidirectional
Sensitivity -44 dB (1 V/Pa, at 1 kHz)
Frequency response 100 to 10,000 Hz
Communication specifications
Communication system Bluetooth version 5.0
Maximum RF output 10 mW EIRP
Maximum communication
range
Line of sight - approx. 10 m (33')
Frequency band 2.402 GHz to 2.480 GHz
Modulation method GFSK, Pi/4DQPSK, 8DPSK
Spread spectrum method FHSS
Compatible Bluetooth profiles A2DP, AVRCP, HFP, HSP
Supported codec SBC
Supported content protection
method
SCMS-T
Transmission band 20 to 20,000 Hz