Easy for carrying around. It has been through testing standards. High performance and super exquisite workmanship.
Charge module- Linear charging. Current- 1A adjustable. Charge precision- 1.5%. Input voltage- 4.5V-5.5V. Full charge voltage- 4.2V. Led indicator- red is charging blue is full charged. Input interface- mini USB. Work temperature- -10 to +85. Inversed polarity- NO.
Specifications Bluetooth Protocol: Bluetooth Specification V4.0 BLE USB Protocol: USB V2.0 Operating Frequency: 2.4GHz ISM band Modulation Mode: GFSK (Gaussian Frequency Shift Keying) Transmitting Power: =4dBm Sensitivity: =-84dBm at 0.1% BER Transmission Rate: 6 kbps (asynchronous & synchronous) Security Feature: Authentication and encryption
USB powered Universal Micro USB 5V power supply 3.7-5V Supply Pad External 3.7-5V lithium battery power conversion LED indicator Bluetooth mode long blue light 3.5mm stereo audio interface Standard 3.5mm interface, output stereo sound source, plug in headphones, connect amplifiers and other devices
Module stereo output, built-in Bluetooth antenna structure is simple, the power supply voltage is 3.7V~5V version selection, active speakers increase Bluetooth connection function. 7PIN output interface is spacing 2.54 through hole, 7PIN output interface is: + power, ground, left channel, right channel, mute, LED status indicator, reserved port.
Audio Input: Wireless Bluetooth Max. Receiving Distance: 10 Meter Power Output: Dual-channel 15 W+15 W Applicable Speaker Impedance: 4/6/8/10 ohm Supply Voltage: DC 10~25 V(recommended DC 12V More than 2A)
Bluetooth 3.0 +EDR, class 2 Support s A2DP stereo profile and HFP profile Support DSP, Auto pairing. 3.5mm stereo inlet socket Transmission Distance: 10m Work Time: 8 hours Color: Black Item size: 5.5 * 2.5 * 1.0cm / 2.17 * 0.98 * 0.39in Item weight: 15g Package size: 11.0 * 7.5 * 2.0cm / 4.33 * 2.95 * 0.79in