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1.5.2 Battery Charging Time

System at Power off mode, charging time is less than 3. Hour using Harman 5V/2.3A adaptor.

1.5.3 Battery power off current

System at power off mode, battery current is less than 100uA

1.5.4 Battery Playtime

Test Audio Signals:

 3 pre-selected MP3 tracks

Requirements:

Estimate Playtime > 8 hours for Music Playback

Test Condition (Ambient Temperature 23 +/-5 degree)

1. Insert fresh and fully charged Li-Poly cells into the DUT. Connected a multi-meter at the battery

terminals to measure its voltage.

2. Set the DUT to Bluetooth Mode. Use iPhone as the music source.

3. Set the DUT to maximum volume and playback a 1 KHz 0dB music track through the iPhone. Record

the Rated Output Power (ROP).

4. Adjust the volume step of the iPhone until the audio output of the DUT is ¼ of ROP. Record the

volume step on the iPhone.

5. Set the iPhone’s volume to the volume step as recorded in step 4. Playback 3 pre-selected MP3

track in repeat play mode. Record the start time.

6. Measure the battery voltage every 5 to 10 minutes interval. When audio is inaudible, record the end

time. Compute the battery playtime for 3 pre-selected MP3 track.

Note, please don’t adjust iPhone’s volume during set up and testing since that will change the DUT’s

volume by AVRCP.

2-6

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General

Speaker type	-
Driver diameter	40 mm
Number of drivers	2
Number of speakers	1
Audio output channels	- channels
Impedance	- Ω
Frequency range	85 - 20000 Hz
RMS rated power	16 W
Signal-to-Noise Ratio (SNR)	80 dB
Bluetooth version	4.1
USB charging port	Yes
Bluetooth profiles	A2DP, AVRCP, HFP, HSP
USB connector type	Micro-USB
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Connectivity technology	Wireless
Battery voltage	3.7 V
Battery capacity	3000 mAh
Power source type	Battery
Battery life (max)	10 h
Battery recharge time	3.5 h
Product color	Turquoise
Protection features	Splash proof
Recommended usage	Universal
Quantity per pack	1 pc(s)