基本规格
名称/型号 BTR11 Hardware Solution Bluetooth：BES2700IHC，AMP：HT97220
颜色 Black/White 音量控制 物理按键
重量 About 13g 尺寸 Approximately 55x19x14.6mm (including clip)
Status Indicator LED indicator shows Bluetooth transmission codec, charging status, low battery reminder, etc. 麦克风 Supports Bluetooth voice calls, built-in omnidirectional microphone
Bluetooth Reception (5.3) SBC/AAC/LDAC Supported Impedance PO：8~100Ω
Bluetooth Codec Indicator SBC：Blue light flashes once every 5 seconds 卓宁控制 支持
AAC：Blue light flashes twice every 5 seconds 固件升级 Bluetooth firmware can be upgraded via OTA
LDAC：Blue light flashes three times every 5 seconds 　 　
Buttons and Interfaces
按键 Volume +/- buttons *1, multifunction button *1 USB Type-C(charging)
耳机输出 Standard 3.5mm jack 　 　
电源参数
工作电源 DC 5V/1A 电池容量技术 120mAh lithium polymer battery
充电时间 ＜1.5 hours 　 　
Battery Life and Testing Conditions
3.5mm Headphone Output: ≥15 hours
音频输入 蓝牙接收 Codec AAC/SBC
音量 40mV输出 增益 N/A
Display Status N/A Playback Track and Format MP3 44.1KHz/16bit
EQ 关 负载 32Ω
3.5mm Headphone Output: ≥8.5 hours
音频输入 蓝牙接收 Codec LDAC
音量 40mV输出 增益 NA
Display Status N/A Playback Track and Format MP3 44.1KHz/16bit
EQ 关 负载 32Ω
音频参数
Headphone Output Performance (3.5mm, Bluetooth decoding, LDAC)
输出功率 L+R≥45mW+45mW(16Ω，THD+N＜1%） 输出阻抗 ≤0.5Ω
L+R≥30mW+30mW(32Ω，THD+N＜1%） 通道分离 ≥76dB
L+R≥3mW+3mW(300Ω，THD+N＜1%） Signal-to-Noise Ratio ≥101dB(A-weighted)
THD + N  ＜0.008%(1kHz/-3dB@32Ω) 本底噪声 ≤8uV(A-weighted)
频率响应 20Hz~20kHz：damping＜0.5dB 　 　
20Hz~45kHz：damping＜2.3dB

Test conditions: Bluetooth decoding, LDAC codec, -5dB sinusoidal signal, 20Hz-20kHz, 3.5mm headphone output (32Ω load).

Test conditions: Bluetooth decoding, LDAC codec, -5dB sinusoidal signal, 20Hz-45kHz, 3.5mm headphone output (32Ω load).

Test conditions: Bluetooth decoding, LDAC codec, -3dB sinusoidal signal, 20Hz-20kHz (32Ω load).