Q57
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详情介绍
Change resume
NO Change phase Changes Date Version
1 / New release 2024-3-7 A0
Product performance parameters
Product performance parameter
Parameter definition Parameters/Description
Main control chip AC6956C4
Bluetooth version V5.3
Bluetooth power Class2: Max transmit power 10dBm
Bluetooth Frequency 2402MHz-2480MHz
Sound Channel system 1.1 sound
Charging interface TYPE C
Adapter specifications DC5V 1A
Battery Cylindrical Lithium battery,18650 7.4V 1800MAH
Horn 2.3 inches (diameter 57mm circular - external magnetic) 4 euro 15W +¢ 31mm Mylar Tweeter
Frequency response range F0-20KHz (horn)1500Hz-20KHz(Mylar)
Sensitivity 78db+/-3db(horn)85± 3dB(Myra)
Distortion ≦1%
Output rated power 12W+8W
Music playback time
Hotel California
Turn on light medium volume about/hour; Light off medium volume approx. / hour (50%) Note: etc latest motherboard
Standby time
(Bluetooth connected without music)
Turn on lights ≧ approx. 16H Turn off lights ≧ approx. 40H
Charging time ≦4 hours
Bluetooth Connection distance 10 m (no obstacles)
Static power consumption after shutdown ≦ 5uA
Power consumption with lights off ≦ 50mA
Power consumption with lights on ≦ 90-100mA
Product certification Upon request
Product operation instructions
ID design part
ID design drawing (including dimensions)
Product six views
Product process color diagram
Structural design section
Structure explosion diagram
Electronic design section
Circuit block diagram
Electronic schematic diagram
PCBA physical picture
Battery part

Battery model: 18650

Battery capacity/Voltage 1800mAh/7.4V

Battery specification:

Cycle life: 250 times

Battery Photo:

Battery size diagram
Schematic diagram of the protection board
Battery protection board PCB diagram
Acoustic design section
Acoustic design specification

Horn drive mode :· Moving-coil

Horn diameter: ¢57mm round /¢31mm Mylar high

Finished impedance: 4Ω±10%/8Ω±15%

Product sensitivity (input1V VOL=MAX 1M) : 87±3dB /85±3dB

Finished channel balance (AT 1KHZ 1W) :1.1 channel

Maximum power of finished product: 12W+8W

Finished distortion (1KHZ 0DB) : ≤1%

Frequency range: 135Hz~20KHz 1500Hz~20KHz

Finished test equipment: · Sunlight electroacoustic test system · Fine Sound LMS Electroacoustic test system ·SOUNDCHECK Electroacoustic test system

Frequency response specification diagram
Basic inspection items
Project Test conditions and methods Test results
1 Bluetooth name Use Bluetooth tester and speaker to automatically search for pairing connections and see if the name displayed on the Bluetooth tester is normal Bluetooth Name: Q57
2 Power on \ Off Power button Power on, off, indicator light, prompt tone is normal Normal on and off, indicator and prompt tone
3 Bluetooth Play music after the Bluetooth tester is paired with the speaker successfully, and test the key function: up and down music, volume increase and decrease, play/pause, pay attention to whether the sound has current sound, small sound, noise, broken sound, etc. Connection successful, button function is normal
4 TF card Use TF card to insert the speaker and play music, while testing the key functions: up, next, play/pause, volume increase and decrease, pay attention to whether the sound has current sound, small sound, noise, broken sound, etc. TF card functions normally
5 USB flash drive Use the U disk to insert the speaker and play music, while testing the key function: up, next, play/pause, volume increase and decrease, pay attention to whether the sound has current sound, small sound, noise, broken sound, etc. No function
6 AUX Insert one end of the 3.5 to 3.5 audio cable into the speaker and one end into the mobile phone or computer and open the mobile phone or computer music APP to play music, and test the key function: up, next, play/pause, volume increase and decrease, pay attention to whether the sound has current sound, small sound, noise, broken sound, etc. Normal function
7 Radio Insert the charging cable to connect the speaker as an FM antenna, and near the window or leave the computer or charger and other equipment with large interference, press the play key to automatically search the radio and automatically save the radio, press the +/- key to retrieve the radio, and pay attention to whether there is current sound, small sound, noise, broken sound, etc. No function
8 Call test Enter the phone mode after pairing and connecting the Bluetooth tester with the speaker, align the microphone hole of the speaker, pay attention to monitor the output sound of the tester for noise, small sound, broken sound, etc. (Monitor the headset connected to the Bluetooth tester sound output) Microphone call is normal, sound is normal
9 Key function
  1. Power button: long press for 3 seconds to turn on, 3S to turn off, short press: light switch, double-click mode switch :BT/TF(need to insert card)

+ key: Click Add volume long press
- Key: Click to reduce volume long press previous
Play: Press the music to play and pause. Connect Bluetooth call mode: Click: Answer the call, click again: hang up the call, hold down 1s: reject the call, double-click: callback, hold down: disconnect Bluetooth.

Keys function properly
10 Indicator light Startup: RGB light + indicator: startup blue light flashes quickly, connected Bluetooth blue light is steady on, play music into spectrum light effect + breath light effect (play music spectrum light effect, pause music breath light effect)
RGB light effect + indicator light effect:
1. Spectrum light effect + breathing light effect (play music spectrum, pause music breathing)
2. Running horse light effect/Indicator: Gradual breathing light
3. Color light effect/indicator: color changing light
4. Breathing light effect/Indicator: Breathing light
5. Gradual breathing light effect/indicator: Breathing light
6. Turn off the light low power: prompt tone alarm. The charging red light is long on, and the charging red light is off.
Prompt light and corresponding status normal
11 Battery display After connecting the speaker with an iPhone, pay attention to whether the power symbol of the speaker is displayed in the upper right corner of the phone, such as: Battery display normal
12 One to two (TWS) Any two speakers Bluetooth connection combined into a stereo speaker, and then connected Bluetooth test to play music at the same time, test key function synchronization, sound delay No function
13 Call distance Make and receive calls by successfully connecting the speaker with an iPhone in the room. The speaker is ≥10 meters directly facing the phone and ≥8 meters facing away from the phone. Facing the phone ≥10 meters, facing the phone ≥8 meters, the sound is normal
14 Connection stability Successfully connect the speaker with an Apple phone and play music in the room. In the straight line connection distance without obstacles, the connection distance is ≥10 meters, pay attention to listen to whether there is a pause, jamming and other phenomena Connection distance ≥10 meters, music playback is normal
15 Charging test Insert MICRO USB/Type-C 5V 1A charging cable to charge the speaker Charging process red light on
16 Full charge time Charging the speaker with 5V 1A charger About 4H
17 Mono test Test the music through Bluetooth or TF card, pay attention to the sound output: male voice, female voice Sound channel test normal
18 Recording Test Apple phone test/Android phone test, sing bar/Cool dog/national K song /QQ music No function
19 Auto shutdown Suspend playback after 10 minutes of disconnection between the speaker and the mobile phone. Watch whether the speaker will automatically shut down after 10 minutes. Hibernation with 10 minutes (no operation)
20 Shutdown sleep current DC3.7V, < 50uA < 5uA
21 Charging voltage \ current DC5V,< 850mA < 850mA
22 Low Battery test Boot connect Bluetooth /TF card /U disk, play songs to test whether there is a prompt/shutdown when the machine power is low. Low voltage indicating normal
Reliability test
Order Test project Test requirements Test status
1   Free drop Drop the bare machine product from a height of 80Cm to the cement floor, six sides/once each, check whether each side is cracked and loose, and check whether the indicator light and function are normal   /
2   Vibration test (bare metal) According to the characteristics of our vibration tester, set the frequency of 200Hz, vibration 4H, after the experiment to observe whether the product cracking, loosening, function test, indicator light, electrical function is normal   /
3   USB Connector plug test Simulate the plug and unplug action during normal use, power and charger products are plugged and unplugged 5000 times, Bluetooth products are plugged and unplugged 3000 times, the plug and unplug speed is 10 ~ 20 times/min, and confirm whether the port can be plugged and unplugged normally after the test (the socket is allowed to have mild appearance damage after the test), and whether there is poor contact in the function test   /
4     High and low temperature cycle Place the Bluetooth speaker at a temperature of 20 ° C ± Perform the following steps in a temperature control box at 5 ° C
a) Place the sample at a temperature of 65℃± Keep it at 2℃ for 4 hours;
b) Reduce the temperature of the test chamber to -20℃± 2 ° C and kept for 4 hours;
c) Temperature conversion time is not more than 30 minutes;
Bluetooth audio should not leak, not deflated, no fire and no explosion, no rupture, indicator light and various electrical functions are normal
    /
5   Salt spray test (bare plate) For hardware, salt spray test should be carried out before the incoming material is put on line. 5% NaCl solution,PH value between 6.5-7.3, at 35℃ through the salt spray testing machine 1.4± 0.2Kg/㎝2 air pressure automatic spray for 12 hours. No corrosion occurs /
6 Key Trust test Simulate the action of pressing the key during normal use, press and touch the instrument platform for 3000 times repeatedly, and confirm whether the key can be used normally after the test /
7 Communication Quality Test Indoor connection Apple, Huawei, respectively for receiving/making calls, facing the phone 10 meters; 8 meters away from the phone; 360-degree dead Angle test within 5 meters of outdoor roof no abnormality. OK
8 Audio Output Quality testing Apple, Huawei and other brands of mobile phones as the test reference object, respectively play music to confirm whether the sound effect is normal OK
9 Aging test First fully charge the Bluetooth speaker, play music at the maximum volume, and then cycle for 3 times while playing for 12 hours, and then test its electrical functions to see whether it is normal OK

Shenzhen NexaSound Innovation Technology Co., Ltd.
Phone:+86 17601546294