Guangdong Zhuoning Technology Co., Ltd..-AIR AMP

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基本规格
名称/型号	LINK TWS(UTWS17)	硬件方案	DAC: AK4333 * 2 Bluetooth decoding: QCC5181 * 2
颜色	黑色	尺寸	about 8g × 2 (ear hanging only) about 112g (charging box only) about 128g (complete machine)
重量	about 93.171.134.2mm (charging box)	采样率支持	Up to 192kHz-24bit
蓝牙版本	蓝牙6.0	卓宁控制	服务中心
Audio Decoding	SBC/LC3/aptX/aptX Adaptive/aptX lossless/LDAC/LHDC	Low-battery warning	服务中心
Bluetooth range	10 m	Multipoint connection	服务中心
Battery indicator	The charging case display shows the battery levels of both the charging case and the ear hooks.	Dual MIC call noise reduction	服务中心
游戏模式	is on, but it will increase power consumption	Transparency mode	服务中心
固件升级	OTA upgrade through ZHUONING Control	音量控制	按键
声道平衡	L12 to R12 (0.5dB per stage)	自适应阻抗	8 ~ 100Ω
EQ	support EQ, PEQ
按键与接口
按键	物理按键	Headphone output	MMCX or 0.78mm 2-pin (Both connectors are included and detachable)
电源参数
电源输入	DC 5V ≥1A	电池续航	>7h (SBC code) / The charging case can recharge the ear hooks twice.
充电时间	Ear hooks ≤2h / Charging case ≤2h
音频参数
Performance and parameters of headphone output
输出功率	≥55mW(16Ω / THD+N<1%)	输出阻抗	<0.9 Ω(32 Ω)
输出功率	≥85mW(32Ω / THD+N<1%)	串扰	≥ 90dB (1kHz/32Ω)
本底噪声	≤ 4.9 μV(A-weighted)	THD+N	<0.0020% (1kHz/-3dB/32Ω)
频率响应	20Hz ~ 40kHz: attenuation <2.5dB	SNR	≥ 111dB （ A加权）
峰值输出电压	>5Vp-p

Test conditions: LDAC codec, -3dB sinusoidal signal, 48kHz 20Hz–20kHz, headphone out (32Ω load)