Mini Wireless Bluetooth Stereo Speaker Support TF Card Handfree For Phone

Specifications

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Output Power:2.0W Portable Design
Noise Ratio:≥90 db Wireless bluetooth audio transmission
Charging Voltage:5V Many classic colors for choice
Working Voltage:3.7V LINE connection
Speaker:4Ω 3W Hands-free
Total Harmonic Distortion(THD):≤0.1% 1KHz/1.8W Support TF card and MP3 play
Size:8mm*8mm*8mm With FM function
Bluetooth Distance:10M

Products details of Best Outdoor Wireless Bluetooth speaker with USB and battery power supply:
1.Power supplier: lithium battery:3.7-4 .2 V DC:5V ,600MA Li-ion battery 
2.Work current: <30mA (Bluetooth module)
3.Work current: <400mA (power amplifier, Bluetooth ) 
4.Standby current: <3mA
5.Frequency range :2.401-2 .480 GHz (2.4GHz ISM Segment)
6.The receiver sensitivity: <-90dBm, BER <0.1%*SNR: 95dB 
7.Distortion: <0.2%
8.Frequency Response: 20HZ-20kHZ

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Feature of Best Outdoor Wireless Bluetooth speaker with USB and battery power supply:
1.Scope: <10 meters of wireless communication (consistent with the Bluetooth protocol specifications )
2.Transmit power: Class2 less than 4dbm, low radiation.
3.Spread spectrum: Frequency Hopping Spread Spectrum
4.Bluetooth version: compatible with V2.1, V2.0, V1.1 and V1.2 standard.
5.Bluetooth protocol support: A2DP, AVRCP.