Technical specification: For the bluetooth earphone Bluetooth Specification: V4.1 Transmission Distance: 30ft Transmission power: class2 Wireless Frequency: 2.4-2.48GHZ Playback Time: Up to 4 Hours Standby Time: 90h operating voltage: 3.7V Charging Time: 1-2 Hours Battery: Lithium-ion Polymer 40mAh Weight: 8G For the solar case Output voltage: 5V Dimensions: 75*40*25MM Weight : 25G Battery: Lithium-ion Polymer 400mAh Standby Time: 2000h Q & A and More Details 1: Multiple connection pairs failed? Too many Bluetooth devices around, and please close them and then connect it. 2: Low voice, distortion and staccato? - Proper adjust the Bluetooth playback device(such as phones) to the right level. - Low power need to charge. - Beyond the transmission Distance or there is obstacles between Bluetooth and devices.
The battery in the case can support headset charging 5-7 times, so even in the rainy days do not have to worry about no electricity. Note: If you don t use the earphone for a long time or encounter consecutive rainy days, and please use the USB cable to charge the case, the red light is on whiling charge and off when if full.
Battery Capacity (mAh): 400mAh
Dimensions and Weight
Product weight: 0.0250 kg
Package weight: 0.0500 kg
Product size (L x W x H): 7.50 x 4.00 x 2.50 cm / 2.95 x 1.57 x 0.98 inches
Package size (L x W x H): 10.00 x 6.00 x 3.00 cm / 3.94 x 2.36 x 1.18 inches
Package Contents: 1 x Earphone, 1 x Solar Charging Module, 3 x Ear Tips, 1 x Mini USB cable, 1 x English Use Manual